Since that extension is not provided as part of the Ubuntu distribution, you would most likely be better off reporting this to the developer of the plugin. Have you tried another windows user agent? There must a few of them in the list.
** Changed in: firefox (Ubuntu) Status: New => Invalid -- firefox crash with user-agent switcher and www.tg4.ie https://bugs.launchpad.net/bugs/197462 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