I use synching between phone and desktop. I deleted some bookmarks on my phone and synced phone and desktop Firefox. I would expect that the deleted bookmarks also disappear on my desktop FF under "Mobile Bookmarks", but nothing changes. Worse than that, after I added one more bookmark on my phone and synced, the deleted bookmarks showed up again on my phone. It seems the not deleted bookmarks on desktop are transferred again to my phone. This is actually not what I want...