Mozilla Connect

I am using Firefox Nightly 155.0a1 on Windows 10 22H2 running inside a virtual machine (entity machine not yet tested).Issue: There is an abnormal protruding/outlined block on the outer window frame (outside the content area, part of the browser chro...

I am using Firefox Nightly version 155.0a1 on Windows 11 24H2.On every cold start, Firefox briefly displays a blank window whose default styling matches the legacy UI rather than the current new UI shipped in this build. After a short moment, it corr...