Hi Assuming you have connected the same Sync account on both your mobile and desktop copies of Firefox: In Firefox on your mobile device: # Go into the Settings menu and select ''Firefox Account''. # Tap on ''Synchronise now''. This will “force” a synchronisation of the data that is on the local device storage. Firefox Sync will then combine the two sets, but will also combine the edits that you have made - what you should be left with is the most recent set and folder structure. I hope this helps.