I've tried adding: network.protocol-handler.app.http network.protocol-handler.app.https
and setting the string equal to "usr/bin/firefox", "usr/bin/firefox-3.0", "firefox". None of these corrected the situation. Are there other entries that need to be made? Why would they have disappeared during the upgrade because this function worked in 8.10. -- Thunderbird hyperlinks don't launch browser https://bugs.launchpad.net/bugs/363577 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