We've seen this too (on Ubuntu T). It started happening immediately after the upgrade to Firefox 36. Other web browsers are unaffected; e.g., if I set my preferred web browser to Lynx and click on a URL in Thunderbird the link is being followed.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1427360 Title: firefox doesn't open an url as argument To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1427360/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs