An old favorite add-on slowly becoming unusable Rated 3 out of 5 stars
Update 6/24/14 . installed the update 4.3.2 and syncs are working again. kinda hard to find the update. will keep using and hope bugs are fixed with use on Firefox 30. Hopefully this will restore 5 star status again.
6/2/14 Today I've come to the conclusion that Xmarks is not working as well as I'd like and therefore I must uninstall it.
Over the course of many months I have accepted recurring failure to automatically sync, it works but requires a lot of hand holding to force overwriting local bookmarks. Lately it's creating duplicates even triplicates of saved bookmarks and I have reached a point of distrust that syncing is working or that links I really want are being saved to the cloud.
With the advent of Firefox 29 and auto sync of many things including bookmarks, I see no reason to keep a partially functional app. Good luck to you and hope you get your issues fixed, you've been a great tool while you lasted.