Are you running thunderbird from within KDE without thunderbird-gnome- support installed? Thunderbird has no KDE integration, but it should probably still open x-www-browser (which most likely isn't your default browser anyway).
If you're running in KDE, then this is really a duplicate of bug 543064 ** Changed in: thunderbird (Ubuntu) Importance: Undecided => Low ** Changed in: thunderbird (Ubuntu) Status: New => Incomplete -- thunderbird doesnt open webbrowser when i click on links https://bugs.launchpad.net/bugs/619832 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