My Firefox data disappeared / Account seems reset

If Firefox starts up after an update without your bookmarks and other settings, check whether your data is available in a different profile:

Inside Firefox, type or paste about:profiles in the address bar and press Enter/Return to load it. The About Profiles page will open. This page should list at least one profile and could list many.

The profile that Firefox is currently using will show:
This is the profile in use and it cannot be deleted.

Please do not delete anything here; don't use any Remove buttons.

Do you have another profile named default or default-longnumber listed on this page? If so, you can check whether it is the one you were using recently by clicking its Launch profile in new browser button.

If it isn't what you want, simply close that new window.

If it IS what you want, click the Set as default profile button for that profile on the about:profiles page. Firefox will use it automatically at the next startup.

For more information see Recover user data missing after Firefox update or reinstall.

Note: If your bookmarks are not available in another Firefox profile, see Recover lost or missing Bookmarks for other solutions.

Hello,

Thank you for the response, but my issue is not related to local profiles.

The problem is with my Firefox Account server data. When I logged into my account, the system dashboard stated that my account was created on 09/04/2026 (April 9th, 2026).

It seems my original account and all its synced cloud data were completely wiped or reset from your servers, and a brand new account was generated under my same email address.

I did not request an account deletion or a data wipe. Is there any way for your engineering/support team to check if my older backup data can be restored from the server side?

Thank you.