Ok, I looked a bit, and it appears Firefox is trying to use the GDK-Mir backend, but I'm guessing the GDK-Mir backend is not mature enough yet (?), so the app bails.
Definitely not an Xmir issue as Xmir is not even trying to be used in this case. ** No longer affects: xorg-server (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1660450 Title: Firefox crashes unity8 zesty To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1660450/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

