Diễn đàn hỗ trợ Firefox

hello team Firefox i am Aquib. i am very older user. my Firefox web browser in mac is very Awesome user experience. no lags no glitch no bugs. higher performance than other browsers. but after Firefox ver-120.0.1 Firefox getting lag and glitch in latest version Firefox please try to check in Youtube and switch mini screen to full screen getting lag please solve this problem. my problem is explain in given Screenshot. please fix it.

I belong to almost a dozen regional 'yard sale' groups, and suddenly can no longer post 'for sale' in ANY of them including Marketplace. Yet in the same groups I can post and reply to messages

The menu bar at the top of Firefox is extremely small. The size is about 1 mm. I have tried all the supposed fixes and none of them work. I have a new Macbook pro using Firefox.