Firefox Sync

Firefox Sync permits synchronize plugins, bookmarks, history over many Firefox instances.

Firefox configuration

Firefox desktop

In Firefox URL bar put: about:config.

Search for: services.sync.tokenServerURI.

Replace the URL by: https://mydomain.tld/path/token/1.0/sync/1.5

Create an account at Mozilla : https://accounts.firefox.com/signup

Firefox mobile

Install the plugin fxa-custom-server-addon.