I have this issue on a fully updated edgy firefox. To confirm, if I manually open firefox and go to the site, everything works (including https://) until I close it.
If I follow a link to any site (including normal http:) from Thunderbird, no https:// links work for the session. -- Opening firefox by clicking on links in thunderbird breaks https https://launchpad.net/bugs/57923 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs