Firefox users report high CPU and memory usage in the latest release, caused by browser’s on-device AI inferencing for its ‘smart tab grouping’ feature.
https://www.omgubuntu.co.uk/2025/08/firefox-high-cpu-usage-inference-disable
#mozilla #firefox #opensource
I don’t want AI in my browser. I’ve been a consistent Firefox user for years but this might make me switch to a fork.
Under about:config, browser.tabs.groups.smart you can disable it.
Thanks for reminding me to do this.
I don’t really want to have to keep checking the release notes for new AI bullshit, though.
There’s an option labeled Use AI to suggest tabs and a name for tab groups.
On 141 it’s listed in Settings under the General => Tabs section.
It changes browser.tabs.groups.smart.userEnabled.
Looking at it further, either option will disable it. Here’s the code that checks both values, https://github.com/mozilla-firefox/firefox/blob/FIREFOX-ANDROID_141_0_3_RELEASE/browser/components/tabbrowser/content/tabgroup-menu.js#L481
…for now.
That is the standard playbook:
what have they removed so far?
there used to be a more accessible toggle in settings for that. why tf would they take that out?
To keep most users from disabling it. Just like why the don’t make it opt in.
Also everything that starts with “browser.ml.chat”.