What is the difference between a regular email mask and a custom domain email mask?

Custom domain email masks work a little differently than regular email masks as they let you create unique email masks on the fly, without having to generate them on your Relay dashboard first. This will even work when you are away from your computer, out shopping for instance. You can verbally provide something like shopping@exampledomain.mozmail.com, and it will be instantly created when an email is sent to it. For details on how to start using this feature, check Register your own domain with Firefox Relay Premium.

Can I edit a random email mask that I have automatically generated?

No. Relay random email masks are generated automatically. Once a mask is generated, it is not possible to change it.

Can I use symbols when I create a mask with my unique Relay domain?

An email mask can only contain lowercase letters, numbers, periods, and hyphens, and may not start or end with a period or hyphen.

Can I change the name of my Relay unique email domain after it was created?

It is not possible to change the name of your domain once you have created it.

Can I reuse a mask that I already created?

Yes. Click on the Relay icon that appears in the email field and select a mask from your list of current masks to reuse. If the icon doesn’t show, right-click on the email field and select Use existing mask. Optionally, you can copy the mask directly from your dashboard and paste it into the email field of the website you're visiting.

Can I reuse a mask that I have disabled?

To reuse a mask that you have disabled, you will have to re-enable it from the dashboard.

Can I reuse a mask I deleted?

If you delete a custom or randomly generated mask, it is not possible to use it or reuse it on any website. Once they are deleted, they are gone for good.

Can I reuse or generate a mask for any website?

Although Relay allows you to generate or reuse a mask on most websites, some websites may not allow you to register with a generated mask due to specific email requirements of that website.

Can I save a login with an automatically generated mask?

Yes, Relay works well with a password manager to save your generated mask and your password together.

Can I attach files to my messages?

Yes. However, there's a 10 MB attachment size limitation. Also, remember that only attachments are supported. For example, if you embed an image in the email body and not as an attachment, it won't be forwarded.

Can I reply to an email from my dashboard?

Currently, it is not possible to reply to an email from the dashboard. With Premium, you can reply to forwarded messages in your real inbox. Relay will still hide your real email address when you reply. Check Reply to forwarded emails with Firefox Relay Premium for details.

Is there a limitation on Replies I can send?

A user can send up to 100 replies per day.

Is there a character limit for my Relay domain name?

Your Relay domain name can be up to 63 characters long.

I don't see the icon to generate a new mask in the text field, what can I do?

Occasionally, the Relay icon might not show in the email field on some web pages. Right-click on the email field and select Generate new mask from the menu that pops up to use the mask.

Which data do you collect and how do I disable data collection?

To learn more about the data we collect, visit this page. To disable add-on data collection, follow these steps:

1. Click the Relay icon in the toolbar and then click on the gear icon.
2. Click the toggle next to Allow Mozilla to collect interaction data to enable or disable data collection.

To prevent mask information like the label name, where the mask was created, and where the mask has been used from being collected to enhance your user experience:

1. Visit Settings in the Firefox Relay website.
2. Uncheck Allow ⁨Relay⁩ to collect data showing the sites on which your masks are created and used then click Save. If unchecked, this information will be stored locally in the add-on only.

Do you store my emails?

We do not read or store any of your messages. In the event that an email cannot be delivered to you, we will keep it on our servers and delete it after it has been delivered (in no event will we hold onto it for more than three days).

What happens if I decide to cancel my subscription and switch to the free version of Relay?

Unlimited random masks: You won't be able to continue creating masks if you're above 5. Emails will continue to go through your previously generated masks. Custom email masks: You can only create custom email masks if you have a premium subscription. If you cancel your subscription, you will lose this feature. The custom email masks you have created while premium will still work and receive emails. Replies: You won't be able to send replies after canceling your subscription.

Where is ⁨Relay⁩ available?

Free ⁨Relay⁩ is available in most countries. ⁨Relay Premium⁩ is available in Austria, Bulgaria, Belgium, Canada, Croatia, Cyprus, Czech Republic, Denmark, Finland, France, Estonia, Greece, Germany, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malaysia, Malta, the Netherlands, New Zealand, Poland, Portugal, Romania, Spain, Singapore, Slovakia, Slovenia, Sweden, Switzerland, the US and the UK.