I run firefox on an m2 with a hundred tabs regularly and rarely do i have an issue. When i do i can usually narrow it down to one tab. I’ve got unlocked origin, youtube nonstop, and maybe a few other utility extensions. Maybe try disabling your extensions and see if that helps?
this post was submitted on 15 May 2026
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i hate to be that guy, but “works on my machine”. i use firefox on an m1 air all day every day and it runs flawlessly, although it starts chugging a little if i have 20+ tabs open (loaded). but i genuinely cannot remember the last time i’ve seen it crash.
like someone else said, try disabling your extensions, or reinstall firefox on a new user account to try to isolate the issue
Use it all day on my M1 Pro as well without issue.
You can try Librewolf or Waterfox. Librewolf is better on privacy ( like fingerprinting ), Waterfox quicker. And both have no Ai on board. You should use them with UBlock and I would not install to many extensions.
do you happen to know of any Firefox fork that lets you self host a Firefox login server? I quite like the convenience of being able to sync tabs and browsing history between devices. But I guess if not I can just use KDE connect to send clipboard to copy paste the URL at least instead...
No. Librewolf and Waterfox let you use the Firefox Sync if you turn it on in the settings. But I don't know about any self hosting.