Comment 49 for bug 1765304

The fix seems good to me!

My verification steps:

 - I verified that I could still reproduce the issues in the first post here, in a stock Ubuntu 18.04.1 installation in a VM (all package at their "freshly installed" version, including Firefox).
 - In doing this, I tested both scenarios from the original comment here -- (1) the BitWarden extension and (2) "old" reddit ( https://old.reddit.com/r/firefox/ -- note that a slightly different URL is now needed to get the page that I was referencing in the original report here.)
 - Then, I installed these 2 packages:
https://launchpad.net/ubuntu/+source/gnome-shell/3.28.3-0ubuntu0.18.04.4/+build/15764981/+files/gnome-shell-common_3.28.3-0ubuntu0.18.04.4_all.deb
https://launchpad.net/ubuntu/+source/gnome-shell/3.28.3-0ubuntu0.18.04.4/+build/15764981/+files/gnome-shell_3.28.3-0ubuntu0.18.04.4_amd64.deb
...and ran "sudo apt --fix-broken install" to get a mutter update that gnome-shell required, and I rebooted, and retested BitWarden and "old reddit", and they were fixed!