Menu Fonts white?

[drmoss_ca]

Using Firefox 135 on macOS 15.3.1, if I switch to the Finder and then back to Firefox, all the Firefox menus appear to disappear - in fact the font colour has changed to white, and they are nearly invisible against the grey menu bar. If I then click on the Desktop to switch back to the Finder, and then on the Firefox window, the menus reappear in their usual black. I do not use the system's dark mode and have the appearance theme set to System theme - auto. This happens two or three times a day, but not every single time I switch apps. It was happening on 15.3 as well, and I think it first appeared with the previous update to Firefox. No big deal, but a curiosity.

[drmoss_ca]

I tried to take a screenshot, but each time I pressed cmd-shift-4 it turned the menus black. But Cmd-shift-2 works, and this is cropped to show the white menu font:

[dansgear]

I am also experiencing this issue. Haven't been able to figure out what causes it yet, but it has been happening since Firefox 135 came out.

[jonesdixon]

Attached is a phone photo of the problem.

[khalda8920]

That’s an odd UI glitch. It sounds like the menu text color isn’t refreshing correctly when focus changes between apps. I’ve seen similar behavior where text styling temporarily switches until the window redraws — usually tied to theme rendering or GPU acceleration.