Getting a blank popup window?

Friday, June 8, 2018 | 17:04

There is an annoying bug in Firefox for Linux users which causes the popup window to come up blank most of the time.

see: https://bugzilla.mozilla.org/show_bug.cgi?id=1425829
and: https://bugzilla.mozilla.org/show_bug.cgi?id=1416505

Workaround is to right-click inside the window or resize it. Hopefully this bug will be fixed soon.