User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/110.0

Steps to reproduce:

First off all, I hope all of you Mozilla developers have a great day. Today I tried to resize Firefox by clicking the upper application bar. Before dragging, Firefox was either maximized or took up half of my screen by being on the left or right. This bug happened multiple times, more clearly about every time Firefox has been for a longer time in any of the states explained earlier. Additionally, I'm on a Linux Mint 21.1 machine using Linux Kernel Version 5.15.0-67-generic that runs KDE-Plasma Version 5.24.7. My graphics card is an GeForce GTX 1050ti that uses the NVIDIA driver 525.85.05-0ubuntu0.22.04.1.

Actual results:

After my trying to drag Firefox, it turned entirely invisible. It was still listed in my Task-Manager but seemed to be interrupted in some case since there was a big delay after me trying to close it. Eventually after some seconds, it closed. I relaunched and everything was fine.

Expected results:

It should not have turned invisible in the first place.

The Bugbug bot thinks this bug should belong to the 'Core::Graphics' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

The severity field is not set for this bug.
:bhood, could you have a look please?

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Thanks for the report! Please try to make a screencast of this. Thanks!

(In reply to Darkspirit from comment #3)

Thanks for the report! Please try to make a screencast of this. Thanks!

Hi, this bug stopped occurring recently. I'm sorry for wasting your time.