Fire fox 101.0.1, MacOS 10.15.7this is horrible on Mac/Linux. If I kill "Firefox Isolated Web Content" processes that seem to accumulate, especially after laptop sleeps, it clears up. Only a few kill current tabs, so these processes are danging out t...
I find lingering "firefox isolated web content" processes are the culprit. kill those off and things work again. But yeah,I'm about ready to move too and have been a long time mozilla fan.
On my Mac, my firefox windows slow down and my whole computer becomes a slug. My way to fix is to go into system monitor and kill all the "Firefox Isolated web content" processes. Some kill tabs, but most are just hanging out there with no processes ...