Have been suffering an issue with Firefox for the past few months… involved the bookmarks folder being thoroughly nonuseable—nothing could be added to it whatsoever.. Couldn’t add or move links/bookmarks anywhere except under the regular bookmarks folder. Made me very unhappy since I needed the Blinklist bookmarklet, among other things.
This actually happened a while before also, but had somehow managed to fix it or something, and things were happy again for a while. But it’s been true again these past many months and made me unhappy and pushed me further to Opera (although Opera cannot handle bookmarklets either).
I uninstalled and reinstalled many times, many versions. (Had problems with uninstallation also… had to install the new beta version of firefox into the existing directory, and then run the uninstaller from that, which did work successfully.)
Turns out that the solution to the bookmark toolbar issue is: uninstall Firefox in its entirety (I went ahead and hard deleted the remaining folder/skeleton files once uninstallation had completed), and then visit your profile settings directory (Windows:
C:\Documents and Settings\Your Name\Application Data\Mozilla\Firefox\Profiles\7suc3q0v.default and copy it elsewhere for backup (to save your cookies and bookmarks), and then delete it in entirety.
THEN install a fresh copy of Mozilla Firefox… and then redownload your extensions, restore your bookmarks and cookies, and then be HAPPY. Like so → :)