User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0

Steps to reproduce:

Version: 78.6.0 (32-bit)
Windows 10 Pro (2004 - 19041.685)
NVIDIA GeForce GTX 1660 SUPER - 460.79

Type any text in Quick Search that has hits in the profile.

Actual results:

The results show up in a black box. The results are clickable, but cannot be read.

Expected results:

The results show up properly and are readable

No problem here. I see the text inside the popup. Can you try the light theme? Does this fix your issue? Maybe try to deactivate the HW-acceleration (Options/General at the bottom).

Light theme (or default theme) doesn't work, but disabling HW acceleration does. Is this a regression? I don't remember this happening in earlier versions (don't have an exact version - it was at least a month or so ago).

Adding screenshot of the results (blurred, for privacy) with no HW acceleration.

This is global search, as opposed to Quick Search = Quick Filter.

Are you using Windows operating system dark theme?

Yes, using dark theme on Windows.

@Reporter,
Does this still reproduce when using version 91? And if you resolved the problem, what was the solution?

It seems to be working again in 91. I had HW acceleration turned off all this time, but just turned it back on and restarted TB.

Guess we can close this bug.