I have a similar problem, if not the same. When I restart Firefox to install the plugins, it closes firefox and restarts but it still indicates that they have not been installed.
-- add ons of firefox not install (error 202) https://bugs.launchpad.net/bugs/573654 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