How to configure and run your own Firefox Sync server

1 min read

Short reminder to myself (because it's not the first time I waste my time googling for the answer):

Install your own instance of Firefox Sync server (can be: ownCloud Mozilla Sync app, the minimal FSync on a Synology NAS, or the official Mozilla Sync Server)
If not already done, create a firefox account (https://accounts.firefox.com/settings).
Configure your own instance of Sync server to match your firefox account email address. For ownCloud, this is via your profile "Personal" options.
To configure Firefox Desktop, go to about:config in location bar, and edit "services.sync.tokenServerURI" key to match your server URL.
To configure Firefox for Android, see the blog post How to connect Firefox for Android to self-hosted Firefox Account and Firefox Sync servers.
Configure Sync "the normal" way: https://support.mozilla.org/en-US/kb/how-do-i-set-up-firefox-sync

Enjoy!