This bug hit me after pulling in today's updates. I'd been using Lucid Alpha 3 (32-bit). As suggested in comment #18, disabling Prism fixed it.
-- Firefox does not start with certain addons installed https://bugs.launchpad.net/bugs/518422 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs