Hello ! My firefox for Android had a bug and had to close. When I reopened it, I had lost every bookmarks. The addons I've installed are still there (don't know if it is useful info). I don't use Sync. I wasn't able to find how to restore them on Android. I've read something in an old post about a folder /data/data/org.mozilla.firefox, but wasn't able to find that folder. I'm not good with those things, so, please keep it simple !