For the last few weeks I've been using Firefox Beta for Android on a Galaxy Note Pro 12 (not rooted) & all was well syncing my bookmarks to & from it & to my Desktop & my Galaxy Note 4 (not rooted).

Hi all, For the last few weeks I've been using Firefox Beta for Android on a Galaxy Note Pro 12 (not rooted) & all was well syncing my bookmarks to & from it & to my Desktop & my Galaxy Note 4 (not rooted). Today I found a website that wasn't rendering properly on Firefox Beta, so I decided to install Firefox Stable for Android onto the Note Pro, in addition to have Firefox Beta installed. The problematic website rendered perfectly on Firefox Stable, so I decided to sync my bookmarks back to Firefox Stable just like I had done before, but this time it refuses to download the bookmarks to the Note Pro. I then uninstalled Firefox Beta & tried again syncing bookmarks under Firefox Stable, but still no joy. I've configured all the Firefox Stable sync settings as before by entering my sync account details & selecting only "bookmarks" to be synced, but nothing appears. I've removed the accounts from both Firefox Stable & in the Android settings & re-applied them multiple times & even restarted the Note Pro several times, but it still refuses to download my bookmarks. Meanwhile my desktop & Note 4 are happily syncing bookmarks with each other if I add/remove a bookmark... Confusing eh? So has anyone got any ideas on how to get my Note Pro syncing again, as it was doing it happily until today when I installed Firefox Stable in addition to Firefox Beta. Hope someone can help... Many Thanks