Just had something similar. Was trying to bookmark a site and Firefox crashed on me. I just chose "restore session" and Firefox is now running very slow, isn't affecting the rest of the (Edgy) system. Crash report attached, I'll post again if I can reproduce. Let me know if I can help any more.
** Attachment added: "Firefox crash dump" http://librarian.launchpad.net/5044285/_usr_lib_firefox_firefox-bin.1000.crash -- bookmark crash https://launchpad.net/bugs/65694 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs