My bookmarks are all still there, but 'Show all bookmarks' is empty and so is 'Bookmark this page > Folder > Choose'.
I have installed FF 4.0 on home and office PCs (both Windows XP). Bookmarks are synced between them using FF Sync 1.7. Until a couple of days ago, no problem. But now something weird has happened to the bookmarks on my home PC.
All the bookmarks are there - I can select them normally from the BM toolbar and the BM menu, and they are found by the address bar.
However, I can no longer organise my bookmarks. When I choose 'Show all bookmarks' the All Bookmarks folder appears completely empty. When I add a new bookmark, the Choose folder dialog shows a small, apparently random selection of my bookmark folders, and the Choose drop-down doesn't show any folders at all.
I have tried restoring bookmarks from several days ago and also from the office machine. In both cases restore worked fine, but it still only populates the Bookmark menu and not the Show all/Organise folder.
Alla svar (3)
This can be a problem with the file places.sqlite that stores the bookmarks and the history.
Thanks! It seems to have been a partially corrupted Places file.
I closed Firefox, deleted all of the places.sqlite* files, and restarted. It worked!
This looks like a duplicate of https://support.mozilla.com/en-US/questions/835014#answer-201724
Backup of bookmarks, deletion of places.sqlite, and restoration of bookmarks solved it for me.