The "Block AI Enhancements" toggle was originally introduced in Firefox 148 Nightly in January following significant community backlash afte
The Firefox "AI kill switch" is here.
Go to Settings > AI controls. There, you can toggle the "master kill switch" on to fully block all the features, which means two things:
you won't see them,
you can't even be asked about them.
The default state is, like before, "available". This means the features are NOT on by default (they never were), but Firefox will let you know about them where they exist (e.g. when you create your first tab group) so that you can choose to opt in.
Please note that Firefox for Android or iOS have never included AI features, so you won't see these settings on your smartphones or tablets.
Please also note that, unlike popular belief here on Tumblr, besides "chatbot in sidebar" (which is simply embedding the same page you'd have normally browsed to), none of these features have ever interacted with anything outside your PC, because they download a small model to your computer, to do everything locally. These small models have never been and are not downloaded until you explicitly agree to turn on one of the features.
Update Firefox if you need to (and restart)
Paste about:preferences#ai into a new Firefox tab
Turn on the "Block AI enhancements" option
