Further to comment #6 and upstream bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1315501 issue resolved with Firefox 50, released on 2016-11-15 after which reports of problems ceased.
** Bug watch added: Mozilla Bugzilla #1315501 https://bugzilla.mozilla.org/show_bug.cgi?id=1315501 ** Changed in: firefox (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1628014 Title: WebExtension fails to install only on ubuntu packaged firefox To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1628014/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
