It doesn't look like the default Firefox internal notifications. Maybe some other extension hooks into the notifications or the extension itself uses its own notification system.
-- Firefox should have the option to not use libnotify https://bugs.launchpad.net/bugs/581674 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
