Run your own Mozilla accounts server

The Mozilla accounts server is deployed on our systems using RPM packaging, and we don’t provide any other packaging or publish official builds yet.


This guide is preliminary and vastly incomplete. If you have any questions or find any bugs, please don’t hesitate to drop by the IRC channel or mailing list and let us know.


You might also be interested in this Docker-based self-hosting guide (use at your own risk).

The Mozilla accounts server is hosted in git and requires nodejs. Make sure your system has these, or install them:

A self-hosted Mozilla accounts server requires two components: an auth-server that manages the accounts database, and a content-server that hosts a web-based user interface.

Clone the fxa repository and follow the README to deploy your own auth-server and content-server instances:

Now direct Firefox to use your servers rather than the default, Mozilla-hosted ones. The procedure varies a little between desktop and mobile Firefox, and may not work on older versions of the browser.

For desktop Firefox version 52 or later:
  • Enter “about:config” in the URL bar

  • Right click anywhere on the “about:config” page and choose New > String

  • Enter “identity.fxaccounts.autoconfig.uri” for the name, and your content-server URL for the value.

  • Restart Firefox for the change to take effect.

Note that this must be set prior to loading the sign-up or sign-in page in order to take effect, and its effects are reset on sign-out.

For Firefox for iOS version 9.0 or later:
  • Go to Settings.

  • Tap on the Version number 5 times.

  • Tap on “Advance Account Settings”

  • Enter your content-server URL

  • Toggle “Use Custom Account Service” to on.

For Firefox Preview for Android (“Fenix”):
For Firefox for Android (“Fennec”) version 44 or later:
  • Enter “about:config” in the URL bar,

  • Search for items containing “fxaccounts”, and edit them to use your self-hosted URLs:

    • use your auth-server URL to replace in the following settings:

      • identity.fxaccounts.auth.uri

    • use your content-server URL to replace in the following settings:

      • identity.fxaccounts.remote.webchannel.uri

      • webchannel.allowObject.urlWhitelist

    • optionally, use your oauth- and profile-server URLs to replace {oauth,profile} in

      • identity.fxaccounts.remote.profile.uri

      • identity.fxaccounts.remote.oauth.uri

Important: after creating the Android account, changes to “identity.fxaccounts” prefs will be ignored. (If you need to change the prefs, delete the Android account using the Settings > Sync > Disconnect… menu item, update the pref(s), and sign in again.) Non-default Mozilla account URLs are displayed in the Settings > Sync panel in Firefox for Android, so you should be able to verify your URL there.

Since the Mozilla-hosted sync servers will not trust assertions issued by third-party accounts servers, you will also need to run your own sync-1.5 server.

Please note that the fxa-content-server repository includes graphics and other assets that make use of Mozilla trademarks. If you are doing anything other than running unmodified copies of the software for personal use, please review the Mozilla Trademark Policy and Mozilla Branding Guidelines:

You can ask for help on Matrix ( in the #fxa room (