Although I found this bug annoying, it should not be classifies as "critical." Even "medium" level of criticality is pushing it in my opinion. I might add that, in terms of a workaround, copying my backup bookmark HTML file into my new Firefox profile did not work for me.
-- Firefox / Can't Import Bookmarks https://launchpad.net/bugs/62116 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs