Thu Mar 28 2024 03:42:55 PDT
  • Component: Widget: Win32
  • Resolution: ---
  • Status: UNCONFIRMED, NEW, ASSIGNED, REOPENED
  • Product: Core
  • Priority: P3

431 bugs found.
ID Type Summary Product Comp Assignee Status Resolution Updated
616830 window.open wrong size every time if I set width = 380 height = 200 Core Widget: Win32 nobody UNCO --- 2024-02-27
629864 selections in unfocused text fields are not visible Core Widget: Win32 nobody UNCO --- 2022-10-10
819360 Icons should be full sized or clear around the small icon Core Widget: Win32 nobody UNCO --- 2022-10-10
847079 Ghost images when dragging should always be at full opacity Core Widget: Win32 nobody UNCO --- 2022-10-10
1158435 input type number spin buttons on Windows Server 2012 R2 render issue Core Widget: Win32 nobody UNCO --- 2022-10-11
1192142 Firefox application window is moved by an offset when external monitor is connected or disconnected in Windows OS Core Widget: Win32 nobody UNCO --- 2022-10-11
1215823 firefox stops scrolling using the synaptics touchpad after opening a pdf file in adobe reader Core Widget: Win32 nobody UNCO --- 2022-10-11
1261252 Onscreen keyboard should automatically come up if no keyboard attached Core Widget: Win32 nobody UNCO --- 2022-10-11
1264077 Drop a .lnk (shortcut to website) on Taskbar Button doesn't work Core Widget: Win32 nobody UNCO --- 2022-10-11
1264255 Firefox sync cause Windows jumplist broken Core Widget: Win32 nobody UNCO --- 2022-10-11
1296753 Incorrect title bar colour for minimised windows in Windows 10 Core Widget: Win32 nobody UNCO --- 2022-10-11
1306752 Scrolling does not work with Elantech Touchpad/Trackpoint and e10s enabled Core Widget: Win32 nobody UNCO --- 2022-10-11
1312755 sizemode attribute is "normal" if firefox is started maximized with SW_SHOWMAXIMIZED and sizemode="normal" in xulstore.json Core Widget: Win32 nobody UNCO --- 2022-10-11
1314165 Fx title bar and title bar buttons resize after connecting to win7 with remote desktop without desktop composition (aero) Core Widget: Win32 nobody UNCO --- 2022-10-11
1317025 Address bar dropdown shadow does not respect dual screens Core Widget: Win32 nobody UNCO --- 2022-10-11
1320454 Misinterpretation of Fragment length with HTML Clipboard (CF_HTML) Core Widget: Win32 nobody UNCO --- 2022-10-11
1329590 Input Issue on Firefox Startup Core Widget: Win32 nobody UNCO --- 2022-10-11
1332187 Is it necessary to check |currentTime == sLastPostTime| in CurrentWindowsTimeGetter::GetTimeAsyncForPossibleBackwardsSkew()? Core Widget: Win32 nobody UNCO --- 2022-10-11
1338813 Mouse scroll icon invisible in Firefox full-screen in Windows 10 Tablet mode Core Widget: Win32 nobody UNCO --- 2022-10-11
1339687 windows 10, taskbar at the top, firefox window is moved down on opening Core Widget: Win32 nobody UNCO --- 2022-10-11
1340177 Custom cursor offsets mouse location reported by mouse event on high resolution screen with text zoom enabled on windows Core Widget: Win32 nobody UNCO --- 2022-10-11
1361973 exception Breakpoint during Windows 10 shutdown Core Widget: Win32 nobody UNCO --- 2022-10-11
1374121 Firefox window location is offset on 3440x1440 monitor Core Widget: Win32 nobody UNCO --- 2022-10-11
1374311 DPI not adjusting when moving FF windows between screens with different DPI settings Core Widget: Win32 nobody UNCO --- 2022-10-11
1404605 Cannot click/drag scrollbar on the rightmost pixel Core Widget: Win32 nobody UNCO --- 2022-10-11
1404814 Windows 10 Firefox Nightly taskbar icon not available on first startup after update Core Widget: Win32 nobody UNCO --- 2022-10-11
1409053 Firefox window stops redrawing in Windows, if Visual Effects are adjusted Core Widget: Win32 nobody UNCO --- 2022-10-11
1409464 popup scaling off with multiple monitors Core Widget: Win32 nobody UNCO --- 2022-10-11
1411791 In the past week or so, the taskbar hasn't been hiding as it should when Nightly or a video in NIghtly is fullscreen Core Widget: Win32 nobody UNCO --- 2022-10-11
1416312 Maximized screen resize breaks context menu and puts dialogs outside screen Core Widget: Win32 nobody UNCO --- 2022-10-11
1417449 firefox 57 bad window behavior with window-focus win7 Core Widget: Win32 nobody UNCO --- 2022-10-11
1418668 The Restore down button (middle button on far upper right of the screen, with the X button) does not respond under any circumstances. Core Widget: Win32 nobody UNCO --- 2022-10-11
1421154 Window controls disappear after entering and exiting fullscreen, unmaximizing the window, and opening and closing the menu bar Core Widget: Win32 nobody UNCO --- 2022-10-11
1421749 Multimonitor Setup: Browser Windows is not scaled properly when moved between monitors Core Widget: Win32 nobody UNCO --- 2022-10-11
1422489 US international keyboard no quotation marks, tilde, accented characters Core Widget: Win32 nobody UNCO --- 2022-10-11
1423956 Notifications don't work for about 1 hour after the creation of a new windows 10 user Core Widget: Win32 nobody UNCO --- 2022-10-11
1426813 After closing and reopening Firefox on Windows 10, the window is not at the same pixel position anymore Core Widget: Win32 nobody UNCO --- 2023-03-24
1428569 Windows Taskbar (set to autohide) does not show when the cursor is moved to the bottom of the screen Core Widget: Win32 nobody UNCO --- 2023-12-13
1431555 windows disappear from bad-parsing of registry hex value Core Widget: Win32 nobody UNCO --- 2022-10-11
1435541 Add option to change page size 50% when windows snapped to half screen Core Widget: Win32 nobody UNCO --- 2022-10-11
1437902 window sizing controls don't work unless window is maximized and then reduced Core Widget: Win32 nobody UNCO --- 2022-10-11
1442912 Window size is not restored when resized Core Widget: Win32 nobody UNCO --- 2022-10-11
1454937 System screen scaling + css cursor hotspot = wrong cursor shift Core Widget: Win32 nobody UNCO --- 2022-10-11
1459461 Taskbar displays in fullscreen (YouTube) happens only with firefox no other browser Core Widget: Win32 nobody UNCO --- 2022-10-11
1467258 Almost crash, restart needed: GUI controls are rendered outside visible area if screen resolution is changed. Core Widget: Win32 nobody UNCO --- 2022-10-25
1468656 Taskbar shows up on top of one video when there are multiple full-screen videos Core Widget: Win32 nobody UNCO --- 2022-10-11
1472935 Bookmark context menu items glitch when adding from address or rearranging items Core Widget: Win32 nobody UNCO --- 2022-10-11
1478222 Firefox send the WM_DRAWCLIPBOARD message when it was closed Core Widget: Win32 nobody UNCO --- 2022-10-11
1496407 Firefox opens with browser window borders outside of desktop borders when switching from external to laptop display Core Widget: Win32 nobody UNCO --- 2022-10-11
1501059 Windows - split screen full screen Core Widget: Win32 nobody UNCO --- 2022-10-11
1503312 Firefox window keeps resizing or moving itself slightly Core Widget: Win32 nobody UNCO --- 2022-10-11
1517278 Firefox window grows with every launch Core Widget: Win32 nobody UNCO --- 2022-10-11
1524279 ui.-moz-win-accentcolor not respected Core Widget: Win32 nobody UNCO --- 2022-10-11
1530664 No Firefox taskbar button name when grouping multiple windows Core Widget: Win32 nobody UNCO --- 2022-10-11
1556160 Horizontal Scrolling with Wacom Tablet Sends Left and Right Arrow Keycodes Core Widget: Win32 nobody UNCO --- 2022-10-11
1557241 I can't resize windows when Title Bar is off Core Widget: Win32 nobody UNCO --- 2022-10-11
1558250 Taskbar Jump List actions create a new firefox process instead of using existing one Core Widget: Win32 nobody UNCO --- 2022-10-11
1569490 Windows Taskbar disappearing when moving full-sized Firefox Window to Main Display Core Widget: Win32 nobody UNCO --- 2022-10-11
1581295 Firefox 68.1.0esr not preserving window size - launches smaller every time Core Widget: Win32 nobody UNCO --- 2022-10-12
1582415 Maximized Firefox window blocks auto-hide Windows taskbar starting from version 68.0 Core Widget: Win32 nobody UNCO --- 2022-10-11
1582928 Browser window position has moved 10 pixel (to top + left) on browser start Core Widget: Win32 nobody UNCO --- 2022-12-02
1586747 Geometry lost on restart Core Widget: Win32 nobody UNCO --- 2022-10-11
1598096 Windows AccentColor Registry Keys breaks rendering Core Widget: Win32 nobody UNCO --- 2022-10-11
1604778 Firefox falling apart during use Core Widget: Win32 nobody UNCO --- 2022-10-11
1607216 After dragging on the canvas with drawing tablet pen (not a touch screen), it behaves as if the left mouse button is still held down after lifting the pen Core Widget: Win32 nobody UNCO --- 2022-10-11
1613414 Pressing X in the corner and it opens a new tab Core Widget: Win32 nobody UNCO --- 2022-10-11
1615808 Firefox window size does not adapt to Windows Remote Desktop Core Widget: Win32 nobody UNCO --- 2022-10-11
1619507 Main wIndow too large after opening browser in smaller screen resolution Core Widget: Win32 nobody UNCO --- 2024-02-27
1620527 Cannot launch Firefox as a different Windows user when it's already running, instead opens another window under the same session Core Widget: Win32 nobody UNCO --- 2022-10-11
1622546 Scrollbar shows artifacts on high DPI monitors Core Widget: Win32 nobody UNCO --- 2022-05-02
1633976 Windows Flick Gestures & zoom reset not working since 47 Core Widget: Win32 nobody UNCO --- 2022-12-19
1637301 extension menus do not expand when window is maximized on 4k screen Core Widget: Win32 nobody UNCO --- 2020-08-11
1641523 MS surface Keyboard bugged in Firefox following Windows update 2004 Core Widget: Win32 nobody UNCO --- 2023-01-10
1647175 Touch keyboard not Popping while surface type cover is connated but folded backward Core Widget: Win32 nobody UNCO --- 2020-07-06
1652393 Using Firefox to open files from disk shows those files under "Recent Items" on the Taskbar, despite browser.taskbar.lists.enabled being false Core Widget: Win32 nobody UNCO --- 2024-02-27
1675202 On-screen keyboard doesn't appear when undocked from physical keyboard (win 10 home, 32 bit, 20h2) Core Widget: Win32 nobody UNCO --- 2021-01-04
1676805 Scroll bars and select boxes of Firefox for Win 10 not responding to DPI change Core Widget: Win32 nobody UNCO --- 2021-05-18
1689020 Window size and position is lost when exit Firefox in fullscreen Core Widget: Win32 nobody UNCO --- 2022-05-04
1689025 Window position is lost when exit Firefox in maximized mode Core Widget: Win32 nobody UNCO --- 2022-05-04
1690641 Firefox cannot be dragged back after being moved by Windows to a lower DPI screen Core Widget: Win32 nobody UNCO --- 2023-06-12
1702861 Firefox window doesn't fit whole screen in Tablet mode Core Widget: Win32 nobody UNCO --- 2022-10-26
1712657 Firefox window briefly disappears for a frame when maximizing it by dragging it to the top edge of the desktop on Windows 10 Core Widget: Win32 nobody UNCO --- 2022-02-08
1714622 Firefox window is not restored correctly when FF is started Core Widget: Win32 nobody UNCO --- 2023-03-24
1714752 After Update to 89 from 88 dont save window position and maximized Core Widget: Win32 nobody UNCO --- 2023-03-24
1715821 no taskbar Core Widget: Win32 nobody UNCO --- 2022-02-08
1717443 Window title-bar appears off-screen when starting Firefox after monitor change Core Widget: Win32 nobody UNCO --- 2023-03-24
1719251 With vertical multiple screen, in the smallest one, toolbar widgets are very very little and need scrollbars Core Widget: Win32 nobody UNCO --- 2022-09-21
1720146 Enable `general.smoothScroll.msdPhysics.enabled` by default on windows Core Widget: Win32 nobody UNCO --- 2023-07-11
1726901 Main Window too big after Remote Desktop Session with higher resolution Core Widget: Win32 nobody UNCO --- 2022-10-20
1728817 scrolling and moving the mouse (pen) at same time causes the mouse cursor to lag on windows Core Widget: Win32 nobody UNCO --- 2022-01-26
1730361 Unclear "Not implemented" error when using a file dialog to open word file stored on OneDrive which is open in word Core Widget: Win32 nobody UNCO --- 2022-01-26
1733450 pressing f7 multiple times stacks caret browsing prompts Core Widget: Win32 nobody UNCO --- 2021-11-05
1739891 Holding the mouse on the scrollbar and releasing it on the close button will actually close firefox. Core Widget: Win32 nobody UNCO --- 2022-01-25
1740233 Firefox wont remember last window size and location Core Widget: Win32 nobody UNCO --- 2023-03-24
1741316 Firefox menus goes wrong when on the second monitor (windows 10) Core Widget: Win32 nobody UNCO --- 2022-05-13
1742527 2 pixel overlap in Windows 11 when snapping windows Core Widget: Win32 nobody UNCO --- 2022-09-19
1745128 Remove the taskbar entry from the screensharing-notification window Core Widget: Win32 nobody UNCO --- 2022-01-25
1746998 Firefox does not follow "always show scrollbars" setting in Windows 11 Core Widget: Win32 nobody UNCO --- 2022-03-18
1751775 Snapping window does not retain exact correct location on restart Core Widget: Win32 nobody UNCO --- 2022-05-04
1762491 When turning off an extra display/monitor, sometimes Firefox will try to open on that closed display/monitor, failing to open. Core Widget: Win32 nobody UNCO --- 2024-02-27
1763984 Firefox window is larger than snap zone when snapping in Windows 11 Core Widget: Win32 nobody UNCO --- 2022-10-28
1766502 When Sticky Keys in Windows is turned on and I'm in developer mode and I try to edit a style value sometimes a bunch of random values will start to be inserted. Core Widget: Win32 nobody UNCO --- 2023-06-02
1772750 When Firefox restores the window, it exceeds the current maximum screen size Core Widget: Win32 nobody UNCO --- 2022-10-05
1774752 Firefox doesn't support Windows 11 Multiple Desktops properly Core Widget: Win32 nobody UNCO --- 2022-06-28
1778646 Scroll slider sometimes gets stuck while dragging with a Wacom pen tablet Core Widget: Win32 nobody UNCO --- 2022-08-18
1780161 Window position offset by 8px after every 2nd restart Core Widget: Win32 nobody UNCO --- 2022-07-19
1783755 [Minor] Firefox always open in a small window covering the left 1/5 of my screen Core Widget: Win32 nobody UNCO --- 2024-02-21
1792380 PC AT keys namly -> (Vol mute/Vol - /Vol +) are connected internally to firefox not just the OS for windows client. Core Widget: Win32 nobody UNCO --- 2022-10-11
1797356 When Firefox is opened it causes Windows Explorer to stop responding Core Widget: Win32 nobody UNCO --- 2022-11-03
1797409 Windows Ink device draws and scrolls at the same time Core Widget: Win32 nobody UNCO --- 2022-10-27
1799429 Moving Bookmark To Subfolder Using Drag And Drop Not Possible On External Screen Core Widget: Win32 nobody UNCO --- 2022-11-29
1800398 Back & forward mouse buttons don't work, or mimic PageDown, depending on webpage Core Widget: Win32 nobody UNCO --- 2022-11-29
1805050 Read Windows scaling and compensate for it to get true 100% picture zoom Core Widget: Win32 nobody UNCO --- 2022-12-19
1806259 CSS media queries wrongly detect a Win10 desktop computer with a mouse and a touchscreen, as a device with no mouse (hover: none) and a touchscreen (pointer: coarse) Core Widget: Win32 nobody UNCO --- 2023-09-02
1814455 Moving the application from one monitor with size 200% to monitor with size 100% leaves all text, buttons, address bar, etc at 200%. Core Widget: Win32 nobody UNCO --- 2023-02-21
1815587 Mouse cursor jumps when right clicked on second monitor Core Widget: Win32 nobody UNCO --- 2023-02-07
1816843 Internet Explorer and Edge Legacy migrators are available in Windows 11 Core Widget: Win32 nobody UNCO --- 2023-02-15
1817939 Rendering issue on scaled monitor when firefox is not running, link opened from another place Core Widget: Win32 nobody UNCO --- 2023-02-21
1822465 About Firefox dialog has invalid size on lower dpi display Core Widget: Win32 nobody UNCO --- 2023-03-15
1822720 Firefox version 111.0 halts when attempting to save files on Windows 7 (x64) Core Widget: Win32 nobody UNCO --- 2023-03-27
1823420 After the upgrade to 111.0 64 bit) on Windows 10, the drawing canvas in Lucidchart is completely black and unusable. Core Widget: Win32 nobody UNCO --- 2023-03-21
1824065 Thick white border after minimize and restore in Windows 11 Core Widget: Win32 nobody UNCO --- 2023-03-24
1825350 111.0.1 Win 7 Pro-64 Firefox Window cannot be manually moved or resized Core Widget: Win32 nobody UNCO --- 2023-03-30
1829424 start in background at system startup Core Widget: Win32 nobody UNCO --- 2023-06-14
1833249 (Firefox Nightly) The box at the bottom of the screen explaining where the link is going to take you still appears in fullscreen or for long amounts of time after taking your cursor off of the link you pressed. Core Widget: Win32 nobody UNCO --- 2023-05-19
1834982 visibilitychange event does not trigger on floating window Core Widget: Win32 nobody UNCO --- 2023-10-18
1840334 Maximised window isn't maintained after rotation when in fullscreen Core Widget: Win32 nobody UNCO --- 2023-06-26
1842128 Upon opening Firefox, mouse cursor remains in busy state until first moved Core Widget: Win32 nobody UNCO --- 2023-07-13
1848577 Windows 7 Aero Glass Theme is not properly render on Modern Firefox i.e 102+ Core Widget: Win32 nobody UNCO --- 2023-08-30
1849300 Firefox become not responding while printing or change download directory Core Widget: Win32 nobody UNCO --- 2023-09-11
1849318 First full-screen video after launch badly positioned in Windows 11 Core Widget: Win32 nobody UNCO --- 2023-09-05
1852923 Firefox single Window (but all tabs) freeze after inactivity Core Widget: Win32 nobody UNCO --- 2024-03-13
1856447 Changing multi-monitor configuration makes Firefox out-of-screen Core Widget: Win32 nobody UNCO --- 2023-10-02
1859315 overflowing borders when making Firefox fullscreen Core Widget: Win32 nobody UNCO --- 2023-10-31
1862373 nsIFile::Reveal doesn't work for virtualized paths in Microsoft Store Firefox Core Widget: Win32 nobody UNCO --- 2024-03-08
1862779 Firefox prevents switching to a different virtual desktop on Windows 11 Core Widget: Win32 nobody UNCO --- 2023-12-18
1867305 Tablet stylus hover not working after clicking on a bookmark Core Widget: Win32 nobody UNCO --- 2024-02-26
1873354 On startup the mainwindow is resized for a short moment (looks like flickering) Core Widget: Win32 nobody UNCO --- 2024-01-08
1881932 White border at left side of maximized Firefox when showing Windows Taskbar Core Widget: Win32 nobody UNCO --- 2024-03-20
1881948 double taskbar icons on windows 11 secondary monitor Core Widget: Win32 nobody UNCO --- 2024-03-06
1882053 Firefox crash on Snagit Screenshot Core Widget: Win32 nobody UNCO --- 2024-03-14
1609129 Line of white pixels on the left, bottom and right of a maximized window on secondary monitor Core Widget: Win32 davidp99 NEW --- 2022-05-02
1879366 Closing tab/window does not close non-persistent notifications Core Widget: Win32 krosylight NEW --- 2024-02-23
1121408 [e10s] candidate window sometimes appears at top-left of screen because GetTextExt() returns empty rect Core Widget: Win32 m_kato NEW --- 2022-10-11
1503809 FaviconHelper::ObtainCachedIconFile does main thread IO and causes hangs Core Widget: Win32 mconley NEW --- 2024-03-06
61733 Unable to drag to the minimized window Core Widget: Win32 nobody NEW --- 2022-03-23
274205 drag and drop does not open window minimized on taskbar Core Widget: Win32 nobody NEW --- 2024-02-27
435825 Rework the metric computations for uxthemed menus and eliminate the use of magic numbers Core Widget: Win32 nobody NEW --- 2022-05-23
483192 Downloaded files don't inherit NTFS compression or encryption properties from parent folder/directory Core Widget: Win32 nobody NEW --- 2023-10-11
504313 intermittent failure at test_cursorsnap.xhtml,test_cursorsnap.xul Core Widget: Win32 nobody NEW --- 2022-10-10
510299 Enable opening new browser window from pinned taskbar button when Downloads window is open Core Widget: Win32 nobody NEW --- 2024-02-27
511236 Create a transition effect for back/forward gestures Core Widget: Win32 nobody NEW --- 2022-10-10
549090 gfxWindowsPlatform can be called before user prefs are loaded Core Widget: Win32 nobody NEW --- 2022-10-10
560195 Aero Peek previews overlays the image of the previewed window state with that of the current window state. Core Widget: Win32 nobody NEW --- 2022-10-10
575974 Disabled checkboxes appear the same as regular checkboxes in high contrast mode Core Widget: Win32 nobody NEW --- 2023-01-10
586155 Only display Aero Peek tab previews on a delayed hover Core Widget: Win32 nobody NEW --- 2022-10-10
596648 Support pinning specific uri (app tabs) to the taskbar Core Widget: Win32 nobody NEW --- 2022-10-10
625886 Cursor doesn't appear to change when switching from another window Core Widget: Win32 nobody NEW --- 2022-10-10
691193 Update window is blank after restoring from sleep Core Widget: Win32 nobody NEW --- 2022-10-10
726306 Improve support for rendering drop-down buttons on Windows Core Widget: Win32 nobody NEW --- 2022-10-10
827247 Condiderable lag when drawing with a Wacom pen in a Windows 8 tablet Core Widget: Win32 nobody NEW --- 2022-10-10
874282 Firefox covers an auto-hiding windows taskbar when moved to the main display using SHIFT WIN Core Widget: Win32 nobody NEW --- 2023-09-22
898035 Double-click makes a combobox drop-down menu cover a chrome door-hanger Core Widget: Win32 nobody NEW --- 2022-10-10
900773 Application freezes (?) when Windows' keyboard finite-state automaton contains a loop Core Widget: Win32 nobody NEW --- 2022-10-10
923832 You can't save a base64 encoded image through drag and drop Core Widget: Win32 nobody NEW --- 2022-10-11
924254 PointerLock loses mouse ownership when alt-tabbing in windows 8 Core Widget: Win32 nobody NEW --- 2022-10-11
962340 Touchpad scrolling on Thinkpad E531 & Windows 7 feels slow Core Widget: Win32 nobody NEW --- 2022-10-11
967096 Various popup UI elements (tooltips, panels) appear in the wrong (primary?) monitor Core Widget: Win32 nobody NEW --- 2023-12-21
986010 Fix up hard coded pixel values in nsNativeThemeWin for high-dpi Core Widget: Win32 nobody NEW --- 2022-05-02
1005098 With tabsintitlebar disabled, when opening second/third windows from a maximized window, they don't open maximized Core Widget: Win32 nobody NEW --- 2024-02-27
1059741 Under unclear conditions, sometimes maximized windows stretch under the Windows taskbar Core Widget: Win32 nobody NEW --- 2022-10-11
1096826 Premultiplied alpha bug with custom CSS cursors on Windows Core Widget: Win32 nobody NEW --- 2024-02-27
1100469 Log disconnected reasons when audio sessions unexpectedly disconnect Core Widget: Win32 nobody NEW --- 2022-10-11
1124227 Windows are restored as SW_SHOWNORMAL before being resized (by session restore?) to their actual state. Core Widget: Win32 nobody NEW --- 2022-10-20
1148236 Border style check in SetNonClientMargins is always false Core Widget: Win32 nobody NEW --- 2022-10-11
1162562 Investigate converting Firefox to a Universal (UWP) application Core Widget: Win32 nobody NEW --- 2023-09-28
1167299 Update context menu style to match Windows 10 native style Core Widget: Win32 nobody NEW --- 2022-10-11
1172934 Use narrow scroll bars like other modern Windows apps Core Widget: Win32 nobody NEW --- 2022-10-11
1173732 Mouse target area for resizing the Firefox browser window is too narrow Core Widget: Win32 nobody NEW --- 2022-10-11
1174549 drag and dropping window onto second screen with taskbar on the right side makes the maximized window disappear behind the taskbar Core Widget: Win32 nobody NEW --- 2022-10-11
1184759 Scrolling a background Firefox window using touchpad causes it to jump to foreground Core Widget: Win32 nobody NEW --- 2022-10-11
1192664 Transition isn't triggered when you switch from fullscreen to DOM fullscreen Core Widget: Win32 nobody NEW --- 2022-12-20
1193202 Disable smooth scrolling on devices that use precision trackpads Core Widget: Win32 nobody NEW --- 2022-10-11
1199737 Inertial scrolling with a non precision type trackpad can zoom the webpage on Windows Core Widget: Win32 nobody NEW --- 2023-05-15
1214688 Modal save dialog doesn't respect standard Windows7 mechanism "Automatically move the pointer to the default button in a dialog box" (SnapToDefaultButton) Core Widget: Win32 nobody NEW --- 2022-10-11
1233006 On-screen keyboard is not displayed for google docs when tapping to focus text in the doc Core Widget: Win32 nobody NEW --- 2022-10-11
1245522 Password protection OSK button is not automatically displayed while focusing a password field Core Widget: Win32 nobody NEW --- 2022-10-11
1248331 Can not add links to the jump list by drag and drop Core Widget: Win32 nobody NEW --- 2022-10-11
1250016 Modal dialog doesn't completely steal focus in some cases allowing to perform keyboard actions with browser Core Widget: Win32 nobody NEW --- 2022-10-11
1250484 [e10s] The OSK hides and reappears when switching focus between 2 textareas on some machines Core Widget: Win32 nobody NEW --- 2022-10-11
1255020 Location bar doesn't display caret and text selection if I click it after opening context menu of an item in downloads panel Core Widget: Win32 nobody NEW --- 2022-10-11
1255513 "Select Helper Application" and "Application details" windows on about:preferences#applications appear below the menulist Core Widget: Win32 nobody NEW --- 2022-10-11
1256612 Glass is used in fullscreen mode Core Widget: Win32 nobody NEW --- 2022-10-11
1259930 [e10s] Large CSS custom cursor flickers when moving it Core Widget: Win32 nobody NEW --- 2023-06-18
1265105 Windows widget does not receive an eMouseUp at the end of a drag session Core Widget: Win32 nobody NEW --- 2022-10-11
1266377 Trouble re-scaling content at some stages while transition from hidpi to lowdpi monitor Core Widget: Win32 nobody NEW --- 2022-10-10
1267374 Menu not scaled correctly after disconnecting primary display (Windows in MacOS bootcamp) Core Widget: Win32 nobody NEW --- 2022-10-11
1269544 Flick gestures cause mousedown and mousemove events to be lost when using a stylus (Windows, Surface) Core Widget: Win32 nobody NEW --- 2022-10-11
1269810 Tab previews do not scale/render properly with zoom Core Widget: Win32 nobody NEW --- 2022-10-20
1270666 Revisit handling of WM_*ENDSESSION Core Widget: Win32 nobody NEW --- 2022-10-11
1271004 Dragging a file from Firefox's open file dialog to the Windows desktop doesn't work Core Widget: Win32 nobody NEW --- 2022-10-11
1273796 Snapping not remembered Core Widget: Win32 nobody NEW --- 2022-10-11
1282595 [Windows] when returning from sleep, maximized Firefox overlaps taskbar Core Widget: Win32 nobody NEW --- 2022-10-11
1292604 Wrong window position on Windows 10 Core Widget: Win32 nobody NEW --- 2022-10-11
1299239 [e10s] Nightly moves at a 2-3 second delay when moving window with stylus on a touch screen Core Widget: Win32 nobody NEW --- 2022-10-11
1299670 Nightly does not allow moving the window when holding down on title bar with a maximized window Core Widget: Win32 nobody NEW --- 2022-10-11
1300874 [Intermittent] Stylus scrolling not working correctly [e10s] Core Widget: Win32 nobody NEW --- 2022-10-11
1301658 High Contrast Theme - multiple menu options are shown as selected Core Widget: Win32 nobody NEW --- 2022-10-11
1316684 -moz-window-dragging does not work outside the titlebar on Windows Core Widget: Win32 nobody NEW --- 2022-10-11
1331278 Remove "Disable Visual Themes" support? Core Widget: Win32 nobody NEW --- 2022-10-11
1331649 [e10s] Tap+drag gesture on windows touch devices doesn't work with e10s Core Widget: Win32 nobody NEW --- 2022-10-11
1333976 Crash in @0x0 | mozilla::widget::AudioSession::Start Core Widget: Win32 nobody NEW --- 2023-01-02
1335812 Incorrect scaling of dialogs when using a HiDPI monitor and a standard monitor on Windows Core Widget: Win32 nobody NEW --- 2023-03-15
1338307 sometimes the on-screen keyboard doesn't pop up when I tap on the URL bar Core Widget: Win32 nobody NEW --- 2022-10-11
1340254 Trackpad scrolling on Surface Book moves content very quickly Core Widget: Win32 nobody NEW --- 2022-10-11
1342192 Polish: Tabs dragged out of the window don't open on the correct desktop Core Widget: Win32 nobody NEW --- 2024-02-27
1342821 layout.css.devPixelsPerPx set to something other than the OS DPI trashes context menus Core Widget: Win32 nobody NEW --- 2022-05-02
1345022 nsDragService::StartInvokingDragSession hangs for 30+ seconds on Surface Book when using tablet pen Core Widget: Win32 nobody NEW --- 2022-10-11
1350073 Improve RTL support for the certificate viewer Core Widget: Win32 nobody NEW --- 2022-10-11
1353022 Creating a chrome privileged windowless browser and loading a XUL window into it from a bootstrap.js script confuses Windows theming code Core Widget: Win32 nobody NEW --- 2022-10-11
1354102 Dialogs are displayed at the wrong size when moved back and forth between screens with different dpi Core Widget: Win32 nobody NEW --- 2022-10-11
1354110 Unplugging an external lowdpi screen causes the window to be displayed at the wrong size for a moment Core Widget: Win32 nobody NEW --- 2022-10-11
1355839 Firefox covers/blocks the appearance of auto-hiding taskbar (Win10) Core Widget: Win32 nobody NEW --- 2022-10-11
1361758 [W8.1] White artifacts on left and right extremities of Fx when switching between low and high resolution screens Core Widget: Win32 nobody NEW --- 2022-10-11
1364091 Defer mozilla::widget::AudioSession::Start() until later in startup Core Widget: Win32 nobody NEW --- 2022-10-11
1365109 Close tab button and tooltip highlighted on launch Core Widget: Win32 nobody NEW --- 2022-10-11
1365121 Press and hold in text areas does not bring up context menu with spelling correction Core Widget: Win32 nobody NEW --- 2022-10-11
1370679 Free-threaded marshaler in InkCollector doesn't do anything Core Widget: Win32 nobody NEW --- 2022-10-11
1374886 Windows 10 handwriting panel on-screen buttons don't work correctly in Firefox Core Widget: Win32 nobody NEW --- 2022-10-11
1376047 Firefox 54 page stop loading (tab spinner displayed) when attaching/detaching external screen Core Widget: Win32 nobody NEW --- 2022-10-11
1377932 windows control buttons missing Core Widget: Win32 nobody NEW --- 2022-10-11
1379427 Firefox UI won't resize after external video unplug Core Widget: Win32 nobody NEW --- 2022-10-11
1379854 The Close, Maximise and Minimise buttons are not displaying tooltips saying ‘Close’ etc. Core Widget: Win32 nobody NEW --- 2022-10-11
1381616 Fix all occurrences of improper post-CreateWindow initialization in Windows builds Core Widget: Win32 nobody NEW --- 2023-10-09
1388434 Since v55 update, FF is always on top of all other windows Core Widget: Win32 nobody NEW --- 2022-10-11
1396075 scroll box should darken when mousing over the scroll shaft Core Widget: Win32 nobody NEW --- 2022-10-11
1396840 [W10] White border displayed around Firefox after maximizing Core Widget: Win32 nobody NEW --- 2023-04-05
1398395 The hover effect of the caption buttons does not span the entire height of the tab strip in non-maximized windows with compact density Core Widget: Win32 nobody NEW --- 2022-10-11
1399260 Firefox Hangs Then Crashes AFter PC Returns from Hibernation Core Widget: Win32 nobody NEW --- 2022-10-11
1400368 Permafail toolkit/browser/components/tooltiptext/browser_input_file_tooltips.js | Test timed out on Win10 Core Widget: Win32 nobody NEW --- 2022-10-11
1400590 Firefox's Windows taskbar icon's blue highlight flickers when scrolling a select drop-down list Core Widget: Win32 nobody NEW --- 2022-10-11
1402722 when system scaling is 175% or 225%, Firefox's resolution is far away from that of Chromes and Edges Core Widget: Win32 nobody NEW --- 2022-10-11
1403620 Icons for taskbar previews missing or broken for pages with SVG icons (notably shipped about: pages) when "Show tab previews in the Windows taskbar" is turned on Core Widget: Win32 nobody NEW --- 2020-07-06
1406267 Handle clamping width/height of checkbox/radio on Windows Core Widget: Win32 nobody NEW --- 2022-10-11
1406963 DPI set incorrectly after moving Firefox to lower-res screen Core Widget: Win32 nobody NEW --- 2022-10-11
1408991 Window sometimes lacks focus on startup after launching from the profile manager Core Widget: Win32 nobody NEW --- 2022-10-11
1409869 Support power profile detection and change events Core Widget: Win32 nobody NEW --- 2022-10-11
1412870 Zoom in/out cursor should be updated to be more modern-looking Core Widget: Win32 nobody NEW --- 2022-10-10
1413875 Firefox sometimes doesn't respond to DPI change (Win10) Core Widget: Win32 nobody NEW --- 2022-10-11
1415738 Tooltip with long text gets truncated Core Widget: Win32 nobody NEW --- 2022-10-11
1416202 Menu buttons, right-click menu and pop up windows become invisible or inaccessible Core Widget: Win32 nobody NEW --- 2022-10-11
1418568 Download progress is shown in Firefox's first Windows taskbar entry, even if there are multiple Firefox windows Core Widget: Win32 nobody NEW --- 2022-11-04
1419267 Switching from window mode to fullscreen for videos is extremely slow Core Widget: Win32 nobody NEW --- 2022-10-11
1419830 Strange menuitem sidelines appear when layout.css.devPixelsPerPx not default Core Widget: Win32 nobody NEW --- 2022-10-10
1423354 Icons on tab thumbnails fail to display appropriate site icon Core Widget: Win32 nobody NEW --- 2023-03-06
1423768 Firefox chooses the last focused window on a different virtual desktop when opening a new link instead of the last focused window on the current virtual desktop Core Widget: Win32 nobody NEW --- 2023-03-24
1426874 scaling issues on 4k monitors when games change resolution Core Widget: Win32 nobody NEW --- 2022-10-11
1431166 [Windows HiDPI] incorrect height of window control icons after moving window to low DPI screen Core Widget: Win32 nobody NEW --- 2022-10-11
1432088 Surface Book: Transparent popup menus upon right-click Core Widget: Win32 nobody NEW --- 2022-10-11
1433812 Mouse forward/back buttons don't work with keyboard modifiers Core Widget: Win32 nobody NEW --- 2022-10-11
1434351 Unresponsive UI elements in Windows tablet mode Core Widget: Win32 nobody NEW --- 2022-10-11
1443502 [meta] DPI issues on Windows Core Widget: Win32 nobody NEW --- 2022-10-11
1443514 [meta] Context menu issues Core Widget: Win32 nobody NEW --- 2022-10-11
1446619 there is a line in top of tabbar when using multiple monitors Core Widget: Win32 nobody NEW --- 2022-10-11
1448127 issue with switching tabs when Firefox window is split-screen Core Widget: Win32 nobody NEW --- 2022-10-11
1449164 Context menu colors do not match UI on Windows Core Widget: Win32 nobody NEW --- 2022-10-11
1451873 Semi-transparent cursors rendered incorrectly Core Widget: Win32 nobody NEW --- 2022-10-11
1452072 Frequent multi-second parent process hangs under JumpListBuilde (due to local network resource link?) Core Widget: Win32 nobody NEW --- 2022-10-11
1456811 Intermittent widget/tests/test_taskbar_progress.xhtml,test_taskbar_progress.xul | Expected availability of taskbar - got false, expected true Core Widget: Win32 nobody NEW --- 2022-10-11
1460185 support Windows 10 Timeline in April Update Core Widget: Win32 nobody NEW --- 2022-10-11
1460637 Touch dragging a tab confuses mouse dragging text selection Core Widget: Win32 nobody NEW --- 2022-10-11
1460640 [aarch64] First mouse drag after touch dragging tab is ignored Core Widget: Win32 nobody NEW --- 2022-10-11
1460855 Firefox not maximizing correctly after minimizing in Windows Build 10.0.17666.1000 Core Widget: Win32 nobody NEW --- 2022-10-11
1461353 Startup hang in nsIWidget::Create on Windows 10 Core Widget: Win32 nobody NEW --- 2022-10-20
1465155 On-screen keyboard not working with Click2Speak Core Widget: Win32 nobody NEW --- 2022-10-11
1467405 Black pixels on the browser UI when not maximized Core Widget: Win32 nobody NEW --- 2022-10-10
1470683 Nightly windows not maximizing correctly and duplicate _ [] X toolbar buttons Core Widget: Win32 nobody NEW --- 2022-10-11
1487047 We seem to not honour system keyboard focus ring settings correctly for popup windows Core Widget: Win32 nobody NEW --- 2022-10-11
1493472 Firefox not remembering window position in windows 10 Core Widget: Win32 nobody NEW --- 2024-01-24
1494254 [win] Ebay - dropdown menus still displayed after zoom from keyboard Core Widget: Win32 nobody NEW --- 2022-10-11
1495998 windows.ui.notifications.h is missing on mingw for bug 1155505 Core Widget: Win32 nobody NEW --- 2024-02-27
1496650 WinTaskbar::GetAppUserModelID doesn't return valid AppID on 64-bit Firefox when 32bit Firefox is installed Core Widget: Win32 nobody NEW --- 2022-10-11
1498234 Page content extends 1px beyond monitor bounds when maximized on second monitor with different dpi Core Widget: Win32 nobody NEW --- 2022-10-11
1501880 Title bar of active window is no longer colourised (colorized) now that Windows 10 Dark mode is respected Core Widget: Win32 nobody NEW --- 2022-10-11
1508108 Assertion failure: !mDirty, at src/widget/windows/TSFTextStore.h:652 Core Widget: Win32 nobody NEW --- 2022-10-11
1512539 Youtube Fullscreen out of alignment when window is snapped to the left/right Core Widget: Win32 nobody NEW --- 2022-10-11
1516419 touches ignored in successive touches Core Widget: Win32 nobody NEW --- 2022-10-11
1523704 Cursor in textual widgets in content (e.g. bugzilla) updates its position only after blink Core Widget: Win32 nobody NEW --- 2022-10-11
1524217 innerWidth is 2 pixels larger notebook + monitor combination is used with screen resolution = 1920 x 1080 Core Widget: Win32 nobody NEW --- 2022-10-11
1525523 Crash in ATL::CComObject<T>::~CComObject<T> Core Widget: Win32 nobody NEW --- 2022-11-08
1525529 Crash in CInkCollector::_FreeAllTabletContexts Core Widget: Win32 nobody NEW --- 2022-09-20
1525531 Crash in ATL::CComObject<T>::`vector deleting destructor' Core Widget: Win32 nobody NEW --- 2022-12-09
1529127 Use URL for the filename of internet shortcuts without page titles on Windows (remove bogus attempt to get `noPageTitle` from pageinfo.properties from widget/windows/nsDataObj.cpp ) Core Widget: Win32 nobody NEW --- 2022-10-11
1530875 MOZ_ASSERT(hooked) failure in TIPMessageHandler::TIPMessageHandler() on Windows on ARM64 Core Widget: Win32 nobody NEW --- 2022-10-11
1532769 Add test to ensure normal web content cannot use keep aspect ratio window feature Core Widget: Win32 nobody NEW --- 2022-10-11
1535375 Ensure that lockAspectRatio window feature operates correctly when calling window.resizeTo Core Widget: Win32 nobody NEW --- 2022-10-11
1536493 Firefox window size should be preserved after a session restore or restart after using the touch keyboard Core Widget: Win32 nobody NEW --- 2022-10-11
1536616 Input renders black box on inputs when background is set to transparent in High Contrast Mode Core Widget: Win32 nobody NEW --- 2022-10-11
1537937 Cursor doesn't change while dragging tab Core Widget: Win32 nobody NEW --- 2023-03-30
1540224 Bookmark "Saved to Library" doorhanger appears under right-oriented taskbar if screens changed Core Widget: Win32 nobody NEW --- 2022-10-10
1541349 Astral keystrokes show up as two surrogate keystrokes Core Widget: Win32 nobody NEW --- 2023-06-26
1541593 Windows: Reduce querying for volume information Core Widget: Win32 nobody NEW --- 2022-05-02
1550533 [Autofill] High Contrast Autofill dropdown menu is not displayed correctly in high contrast Core Widget: Win32 nobody NEW --- 2022-10-11
1556805 Bookmark folder in bookmark toolbar covers Windows taskbar when clicked Core Widget: Win32 nobody NEW --- 2022-10-11
1559564 Per-monitor DPI broken either in latest Firefox or latest Windows Core Widget: Win32 nobody NEW --- 2022-10-11
1567066 Windows version of nsFilePicker treats all dialog errors as user cancel Core Widget: Win32 nobody NEW --- 2023-12-01
1570613 ::RegisterDragDrop does main thread I/O during startup Core Widget: Win32 nobody NEW --- 2022-05-02
1570616 Calls to CoCreateInstance are slow Core Widget: Win32 nobody NEW --- 2022-05-02
1579828 Snipping doesn't give notifications in Firefox 68 when in fullscreen mode on some machines Core Widget: Win32 nobody NEW --- 2022-10-11
1583739 Pref "taskbar.grouping.useprofile" broke with fast blankWindow display work Core Widget: Win32 nobody NEW --- 2022-09-30
1589290 Settings on recent sites in the taskbar are ignored. Core Widget: Win32 nobody NEW --- 2022-10-11
1589431 White bar at bottom of screen (multiple monitors) Core Widget: Win32 nobody NEW --- 2022-10-11
1592944 Touch Screen - Swipes on menu open via touch drags the menu(s) from the buttons Core Widget: Win32 nobody NEW --- 2024-02-21
1594037 [Win]Firefox min-width not set so hover on buttons jumps out of view Core Widget: Win32 nobody NEW --- 2022-10-10
1598586 After changing DPI on Windows, focusing/unfocusing Firefox menu items leaves artifacts Core Widget: Win32 nobody NEW --- 2022-10-11
1598915 Can't drag a tab into a new window above Visual Studio Code Core Widget: Win32 nobody NEW --- 2023-10-26
1605131 Consolidate Windows command line utility functions (assembleCmdLine and MakeCommandLine) Core Widget: Win32 nobody NEW --- 2022-11-07
1606431 [Win] Add button (active state) is only partially highlighted when using Tab navigation inside New Bookmark panel Core Widget: Win32 nobody NEW --- 2022-10-10
1609827 CSS custom cursor does not scale according to Windows a11y Ease of Access pointer size Core Widget: Win32 nobody NEW --- 2023-06-02
1622547 Exiting a previously full-screened PiP video will display the window controls for a moment before the PiP window closes Core Widget: Win32 nobody NEW --- 2023-08-17
1623595 Firefox window larger than my terminal Core Widget: Win32 nobody NEW --- 2021-02-03
1625185 Sometimes there's a line between the scrollbar and content Core Widget: Win32 nobody NEW --- 2020-07-06
1629165 Crash in [@ shutdownhang | NtQueryObject] Core Widget: Win32 nobody NEW --- 2023-02-02
1651094 Drop down menus displaying artifacts as a result of scrolling (custom layout.css.devPixelsPerPx value) Core Widget: Win32 nobody NEW --- 2020-08-10
1652307 New window opened via Taskbar context menu don't have focus on Windows 10 Core Widget: Win32 nobody NEW --- 2023-01-10
1652797 Padding-top and -bottom for StyleAppearance::Menuseparator never actually get set by nsNativeThemeWin::GetWidgetPadding Core Widget: Win32 nobody NEW --- 2020-08-10
1655612 Fx 78 & 80 do not display course window on 2nd screen Core Widget: Win32 nobody NEW --- 2020-09-02
1667628 Constant writes into the jumplist folder in permanent private browsing mode even on idle Core Widget: Win32 nobody NEW --- 2022-11-30
1667807 Add Telemetry to measure how long JumpLists block the main thread in the wild Core Widget: Win32 nobody NEW --- 2023-11-24
1672457 Browser is not HiDPI on Windows if app-name is not firefox Core Widget: Win32 nobody NEW --- 2021-06-11
1677895 When you open the touch keyboard on Windows on a maximised Firefox window, Firefox becomes windowed Core Widget: Win32 nobody NEW --- 2024-02-27
1684219 After using aero shake on a picture in picture window to minimize and then restore other windows, the originating Firefox window becomes always-on-top (above other restored Windows applications), instead of just the PiP window Core Widget: Win32 nobody NEW --- 2022-05-25
1687354 Firefox doesn't switch to touch mode when logged from a RDP session Core Widget: Win32 nobody NEW --- 2022-05-02
1688429 Windows High-Contrast affects & breaks websites in FireFox (unlike Chrome) Core Widget: Win32 nobody NEW --- 2023-06-02
1696888 About dialog resized incorrectly (hidpi screen) Core Widget: Win32 nobody NEW --- 2022-05-04
1699824 Windows Ink functions are not supported in Firefox Core Widget: Win32 nobody NEW --- 2023-05-09
1709854 Windows Crash in [@ OOM | large | xul.dll | BaseThreadInitThunk] Core Widget: Win32 nobody NEW --- 2022-02-24
1713184 Firefox is not shown on Windows Alt + Tab Multitasking options Core Widget: Win32 nobody NEW --- 2022-02-08
1716994 The download task will be implicitly paused when holding button on Library Core Widget: Win32 nobody NEW --- 2022-02-08
1718409 Windows Aero Shake causes Picture-in-Picture window to not always stay on top on Windows 10 Core Widget: Win32 nobody NEW --- 2022-02-04
1737431 Do not change mouse cursor position by touchscreen input Core Widget: Win32 nobody NEW --- 2022-02-17
1740926 The window size slightly exceeds the screen size when docked on Windows 11 Core Widget: Win32 nobody NEW --- 2022-05-04
1742656 The WinWindowOcclusionCalc thread uses a visible amount of CPU time Core Widget: Win32 nobody NEW --- 2022-12-22
1743393 Crash in [@ ContextMenu_GetCommandStringVerb] Core Widget: Win32 nobody NEW --- 2023-09-04
1746502 [HCM] Panel border colours are wrong in HCM Core Widget: Win32 nobody NEW --- 2023-11-30
1753717 Firefox v96.0.3 (64-bit) on Windows 10 Reports Incorrect JavaScript screen.width Values Core Widget: Win32 nobody NEW --- 2022-05-04
1755741 Improve multi GPU detection on Windows Core Widget: Win32 nobody NEW --- 2023-04-17
1757038 [Windows] PATH expansion occurs in every process Core Widget: Win32 nobody NEW --- 2022-08-11
1757954 Always show scrollbar arrows on Windows 11 when "Always show scrollbars" system setting is enabled Core Widget: Win32 nobody NEW --- 2022-03-09
1759513 Windows are off-screen when secondary monitor is disconnected between Firefox shutdown and restart Core Widget: Win32 nobody NEW --- 2022-10-04
1761030 dragging of window stops if desktop notification gets shown Core Widget: Win32 nobody NEW --- 2023-03-24
1762061 Top window border is missing in Windows Core Widget: Win32 nobody NEW --- 2024-03-12
1765001 Dismiss tooltips when hiding the cursor on Windows Core Widget: Win32 nobody NEW --- 2022-05-02
1765222 nsDataObj::m_enumFE and nsDataObj::mDataFlavors are not parallel arrays Core Widget: Win32 nobody NEW --- 2022-07-05
1769393 [Windows 7 HCM] Hovering menuitems makes them completely unreadable for most HCM themes if HCM was activated when Firefox was already open Core Widget: Win32 nobody NEW --- 2024-02-27
1769394 It's hard to see the submenu icon when it's hovered, in high-contrast-mode, since we use a "classic" windows icon MENU_POPUPSUBMENU whose Win API doesn't let us report whether it's hovered when we draw it Core Widget: Win32 nobody NEW --- 2023-06-02
1770503 Firefox hangs on startup roughly 80% of the time, only ending process works (Win8.1) Core Widget: Win32 nobody NEW --- 2022-09-01
1770718 Crash in [@ WppCleanupUm] Core Widget: Win32 nobody NEW --- 2022-10-11
1772422 Fix recent slow performance in Windows shutdown Core Widget: Win32 nobody NEW --- 2022-09-01
1773412 Firefox icon not shown on the OS volume mixer Core Widget: Win32 nobody NEW --- 2022-06-09
1773456 High accuracy in WindowsLocationProvider doesn't get set Core Widget: Win32 nobody NEW --- 2022-08-23
1774560 [Windows] Hovering on any taskbar items triggers visibilitychange Core Widget: Win32 nobody NEW --- 2024-02-08
1783232 drag image of the link will be behind menupopup until move mouse pointer Core Widget: Win32 nobody NEW --- 2022-08-11
1783426 [Windows & MacOS] Bookmark shortcut creation by dragging&dropping doesn't work for specific links Core Widget: Win32 nobody NEW --- 2023-01-27
1783833 [Windows] Dropping onto a window should raise/activate that window Core Widget: Win32 nobody NEW --- 2022-08-11
1789579 Minimize, Maximize, Restore and Close buttons are using Windows 10 system icons in Windows 11 OS Core Widget: Win32 nobody NEW --- 2023-01-30
1793681 Damage to the browser interface after changing the screen orientation during video playback in full screen on Windows 11. Core Widget: Win32 nobody NEW --- 2022-10-11
1794799 "FreeAudioSession" execution can block the main thread for a while Core Widget: Win32 nobody NEW --- 2022-10-12
1797500 [Touchscreen] Unable to open the context menu for any toolbars if the Title bar is disabled Core Widget: Win32 nobody NEW --- 2022-11-01
1797779 WIN10 Taskbar "Cascade Windows" No Longer Resizes to Default Window Size & Position Core Widget: Win32 nobody NEW --- 2023-12-19
1800601 printf_stderr prints (at least) twice in Visual Studio 2022's Output pane Core Widget: Win32 nobody NEW --- 2022-12-05
1803874 Pocket popup doesn't close after opening app menu Core Widget: Win32 nobody NEW --- 2022-12-19
1806775 "Show in Folder" silentry fail if the file path exceeds 255 char length or deeply nested folder. Core Widget: Win32 nobody NEW --- 2022-12-22
1809525 Extend `WindowsEventLog` utility header to log more event types Core Widget: Win32 nobody NEW --- 2023-01-10
1809527 Modify `WindowsEventLog` to log events to a Application-specific location Core Widget: Win32 nobody NEW --- 2023-01-10
1809530 Relocate `WindowsEventLog` into `mfbt`. Core Widget: Win32 nobody NEW --- 2023-01-10
1809655 Crash in [@ shutdownhang | ... <various> ... | LdrLoadDll ] due to SetWindowsHookEx DLL injection Core Widget: Win32 nobody NEW --- 2023-05-17
1809694 Hidden taskbar does not show when Firefox is re-focused if firefox is the only visible window Core Widget: Win32 nobody NEW --- 2023-02-21
1810065 Firefox about pages use fonts determined by OS regardless of language, due to not using app locale when resolving `font: message-box` Core Widget: Win32 nobody NEW --- 2023-02-08
1812489 Firefox Session Restore onto other virtual desktops may be confusing Core Widget: Win32 nobody NEW --- 2023-03-28
1812573 Firefox Window Un-maximizes Upon Being Clicked When "Show tab previews in the Windows taskbar" is Enabled Core Widget: Win32 nobody NEW --- 2023-02-01
1818796 Windows ignores fullscreen requests on minimized windows Core Widget: Win32 nobody NEW --- 2023-02-24
1819421 UI Density Not AutoAdjusting to Tablet on Convertible device Core Widget: Win32 nobody NEW --- 2023-07-20
1823950 Use SPI_GETDISABLEOVERLAPPEDCONTENT to implement prefers-reduced-transparency on Windows. Core Widget: Win32 nobody NEW --- 2023-06-01
1824053 extracting a tab in dark-mode causes selected Firefox-window to give a short bright white flash Core Widget: Win32 nobody NEW --- 2023-03-24
1824697 Crash in [@ nsObserverService::EnsureValidCall | nsObserverService::RemoveObserver | LocalesChangedObserver::Unregister] Core Widget: Win32 nobody NEW --- 2023-03-27
1826026 Master password prompt not drawn correctly on multi monitor setup Core Widget: Win32 nobody NEW --- 2023-12-13
1826168 Minimizing and un-minimizing browser window makes border artifacts appear Core Widget: Win32 nobody NEW --- 2023-04-05
1829373 Firefox window appears partially offscreen and in random position on restart when moving from large external monitor to laptop Core Widget: Win32 nobody NEW --- 2023-05-03
1833131 Assertion failure: !mPromise, at /builds/worker/workspace/obj-build/dist/include/mozilla/MozPromise.h:1364 Core Widget: Win32 nobody NEW --- Mon 00:15
1833407 Tab toolbar has some space where the firefox window cannot grabbed using the mouse, when customized to include flexible space Core Widget: Win32 nobody NEW --- 2023-07-24
1833841 'Close all windows' option from taskbar icon context menu not working reliably Core Widget: Win32 nobody NEW --- 2024-02-26
1834394 Prevent viewport resize when showing onscreen keyboard on Windows Core Widget: Win32 nobody NEW --- 2023-05-23
1834592 Graphics glitches when Firefox launched from a high DPI Windows app Core Widget: Win32 nobody NEW --- 2023-06-28
1839348 Active drag operation during shutdown is not canceled, causing hang + spurious visual effect Core Widget: Win32 nobody NEW --- 2023-06-22
1842663 Crash in [@ stackoverflow | RtlpHeapGenerateRandomValue32 | RtlpLowFragHeapAllocFromContext | RtlpAllocateHeapInternal | LdrpGetNewTlsVector] Core Widget: Win32 nobody NEW --- 2023-07-10
1843578 Crash in [@ Microsoft::WRL::Details::RuntimeClassImpl<T>::QueryInterface] Core Widget: Win32 nobody NEW --- 2023-07-14
1844010 Elements under popup input region margin don't gain hover styles Core Widget: Win32 nobody NEW --- 2023-08-04
1845379 Crash in [@ UIItemsView::_OnBatchTimer] Core Widget: Win32 nobody NEW --- 2023-08-09
1847936 Non-native HTML radio buttons in chrome have squarish focus outlines Core Widget: Win32 nobody NEW --- 2023-09-15
1849190 Instead of going to fullscreen, window becomes tiny and distant and requires restart to become visible Core Widget: Win32 nobody NEW --- 2023-08-31
1854672 Create a Windows integration-test framework Core Widget: Win32 nobody NEW --- 2023-09-25
1862415 [Win 11 23H2] The label for Firefox fails to extend in the taskbar if Taskbar ungrouping feature is enabled Core Widget: Win32 nobody NEW --- 2024-03-13
1866583 Firefox windows reopened at session start are not positioned where they were closed Core Widget: Win32 nobody NEW --- 2023-12-11
1869469 Can't drag window from some parts of flexible space elements when they are underlapped by toolbar buttons Core Widget: Win32 nobody NEW --- 2024-01-03
1877664 Crash in [@ IPCError-content | MakeIpcFailure SpawnFolderPicker] Core Widget: Win32 nobody NEW --- 2024-02-06
1879790 Firefox renders at old DPI settings when restarted (which makes the browser sort of unusable unless the user resizes the window ) Core Widget: Win32 nobody NEW --- 2024-02-12
1880757 Support Windows 11 Shell Handwriting Core Widget: Win32 nobody NEW --- 2024-03-05
1881320 right click on taskbar icon on second monitor disables context menu on primary taskbar Core Widget: Win32 nobody NEW --- 2024-03-05
1884399 Press [Space] key using Google Japanese Input, half/full-width space are entered erratically. Core Widget: Win32 nobody NEW --- 2024-03-18
1884426 Provide retry UI when the out-of-process file-picker crashes Core Widget: Win32 nobody NEW --- 2024-03-19
1571516 Startup Crash in [@ nsWidgetWindowsModuleCtor] via mozilla::xpcom::CreateInstanceImpl. MOZ_CRASH Reason MOZ_RELEASE_ASSERT(((bool)(__builtin_expect Core Widget: Win32 choller ASSI --- 2024-03-05
1530605 firefox not responding to wacom pentablet Core Widget: Win32 cmartin ASSI --- 2023-11-08
1697294 Content processes unable to detect Windows 10 Tablet Mode Core Widget: Win32 cmartin ASSI --- 2022-09-21
1737640 Foreground windows when raising them on Windows Core Widget: Win32 cmartin ASSI --- 2022-06-01
1842080 Document the Win32 Pointer Input Stack Core Widget: Win32 cmartin ASSI --- 2023-12-21
1851244 CSS Media Queries "pointer" and "hover" are suboptimal Core Widget: Win32 cmartin ASSI --- 2024-01-31
1426722 Audit explicit checks against S_OK and use SUCCEEDED() or FAILED() instead Core Widget: Win32 cpeterson ASSI --- 2022-10-11
1793274 Mouse Scroll doesn't work only on popup because Synaptics creates a hidden window underneath the cursor Core Widget: Win32 masayuki ASSI --- 2023-08-07
652123 Re-enable TestChromeMargin.cpp Core Widget: Win32 rkraesig ASSI --- 2023-04-08
1267491 test_picker_no_crash.html frequently leaks or crashes on e10s Core Widget: Win32 emilio REOP --- 2023-02-24
215719 crash causes loss of text copy to clipboard Core Widget: Win32 nobody REOP --- 2022-10-10
608678 Theme background is drawn too high in titlebar (maximised window) Core Widget: Win32 nobody REOP --- 2022-10-10
992928 crash in mozilla::widget::MouseScrollHandler::LastEventInfo::InitWheelEvent(nsWindowBase*, mozilla::WidgetWheelEvent&, mozilla::widget::ModifierKeyState const&) Core Widget: Win32 nobody REOP --- 2023-03-09
1259063 On-screen keyboard flickers and is automatically dismissed while focusing the Password field Core Widget: Win32 nobody REOP --- 2022-10-11
1267585 Onscreen keyboard doensn't appear when hitting addressbar with pen on sp3 Core Widget: Win32 nobody REOP --- 2022-10-11
1694579 Crash when copying large amount of text Core Widget: Win32 nobody REOP --- 2022-09-21
1731244 Multiple drag operations (lock icon, content images, downloads) do not work when dragging to the desktop or windows explorer Core Widget: Win32 nobody REOP --- 2022-01-26
1798791 PDF Viewer blocks/freezes when trying to save to unavailable network drive Core Widget: Win32 nobody REOP --- 2023-12-25
1853837 Firefox becomes "TOPMOST" when switched from maximized to unmaximized and back to maximized Core Widget: Win32 nobody REOP --- 2023-10-23
1682136 Window position not restored correctly on start (moved by 8px) when Session Restore is disabled Core Widget: Win32 VYV03354 REOP --- 2023-03-24
431 bugs found.

File a new bug in the "Core" product