FF runs slow on my mac, just started recently
In the last few weeks FF has started running really slow. Launch takes 4-5 minutes, the browser won't navigate to any webpages. Preferences can't be opened. The force quit window show the app to regularly moving in and out of a "not responding" state. I had version 95.0.2 installed (the latest). I'm running OSX 10.15.7 (catalina). I uninstalled an reinstalled 95.0.2 and the same problem persisted. I downgraded to 94.0, and created a new profile in the process, and still had the performance problem. Chrome and Safari don't have the problem, and my machine is running as expected with all other apps. I don't have any sites load upon launch. I have 16G of RAM.
Since I can't open prefs, I can't purge caches or anything like that.
Επιλεγμένη λύση
I take it you did not see the Starting Any Computer In Safe Mode link?
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Start Firefox using Troubleshoot(Safe) Mode {web link}
A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?
Start your Computer in safe mode with network support. Then start Firefox. Try Secure websites. Is the problem still there?
Starting Any Computer In Safe Mode (web link) Free Online Encyclopedia
https://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/
https://www.digitalcitizen.life/4-ways-boot-safe-mode-windows-10/ +++++++++++++++++++++++++++++++++++++++++++++++ If the problem goes away with the computer in Safe Mode, the problem is with one of the other programs on the system.
As a test, disable your protection programs.
This suggestion isn't helpful as I clearly state in the title and the body of my request that I'm using a Mac not Windows.
Επιλεγμένη λύση
I take it you did not see the Starting Any Computer In Safe Mode link?