Форум сообщества Firefox

Hi Mozilla team! I have a problem which started happening recently, or at least I didn't realize it before. I went through all the articles, tried adjusting density in Customize Toolbar, went through all the settings with systematic approach with ChatGPT, some things in about:config and even tried adding userChrome.css in profile folder but nothing helped.

The problem is that I have PC with dual screen setup, one is 1440p, 125% zoom in windows settings (main) and 1080p, 100% zoom in Windows settings (secondary). When I change both screens to same zoom, everything is fine, but when it's set up like this, on secondary monitor (1080p one) tabs in open browser don't reach top of the screen, in fullscreen mode, that is, I need to move mouse downwards if I want to middle click open new tab or close old one or even simply move between tabs. It's like, it doesn't reach top of the screen for few pixels - it has a ghost gap.

I don't have this problem in any other browser, tried Chrome, Edge... I would like to continue using Mozilla, but this is bothering me. Could you please consider fixing it in some of future releases?

Thank you in advance!

When I am on a website that I want to save to my bookmarks, I click on the asterisk at the top right of the website, select a folder from the bookmarks menu and click on "Save". This used to add the required website to the bottom of the selected bookmark folder so that I could easily use it again at a later date. This no longer works. I go through the procedure but the website does not appear in the bookmark folder. I have seen related questions and answers but not exactly the same and would be grateful for any assistance.

I've included a gif of the issue. I'm not sure how to "replicate" it.

I have Material Fox Updated installed, and I'm unsure if it contributed to the problem, since I see other threads about this issue as well.

I've tried removing extensions to no effect, so I assume none of my extensions are contributing to the issue either.