It was just a regular left click. I just checked it again, though, and now the new tab isn't opening; something must have been changed since I first posted.
Also, it seems that the new message window isn't minimized; it is just in the background. The Chromium window half-loses focus (it is no longer displayed in the top panel), but it remains on top. Minimizing it reveals the new message Thunderbird window behind it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1191122 Title: Unnecessary tab opened on click of mailto links To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1191122/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs