A patch which is known to fix this issue, is available at 1659988.
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1659988
Everyone affected, please give it a try (take the latest version of the patch!) and report back.
@Maintainers: This issue duplicates
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1659922 and https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1627239
or vice versa.
A patch which is known to fix this issue, is available at 1659988.
https:/ /bugs.launchpad .net/ubuntu/ +source/ firefox/ +bug/1659988
Everyone affected, please give it a try (take the latest version of the patch!) and report back.
@Maintainers: This issue duplicates
https:/ /bugs.launchpad .net/ubuntu/ +source/ firefox/ +bug/1659922 and /bugs.launchpad .net/ubuntu/ +source/ firefox/ +bug/1627239
https:/
or vice versa.