Mozilla finally landed today the long-anticipated AI Kill Switch controls for Firefox, which let users strip the open-source web browser of any AI-powered features, and you can test it right now in Firefox Nightly.
In December 2025, when Mozilla appointed its new CEO, the company developing the popular Firefox web browser revealed that it was working on an AI kill switch that would let users completely disable all the AI features that had been included in the past few releases, estranging more and more loyal users.
Now, the AI kill switch is finally a reality as it landed today with the latest Firefox Nightly update. The implementation is called “AI Controls” and can be found in Firefox’s settings as a standalone section. From there, users can toggle a setting called “Block AI Enhancements” to remove any AI features.
The fact that they can’t find enough utility in AI to make people want to use it is telling.
They should never have rolled out any of these AI features without this already implemented. I think it really speaks to their priorities that they rolled it out in this order.
I’m not going to argue for AI features in Firefox, but I’m curious which features you feel are a priority?
I think you misunderstood what I said, or perhaps I wasn’t clear. I’m saying the killswitch should have been in place from day one when they started implementing ai features.
That said, Mozilla seems to fundamentally misunderstand their market. The type of people who use firefox are generally pretty tech-savvy, and care about things like privacy and control over their experience. Rather than hone in on features that their users want, they have hitched their wagon to the ai hype train in an attempt to favor curry with the masses.
Right. Like what features?
Improving webapp functionality rather than stuffing more and more AI down our throats, for instance.
Full profile sync would be nice
What parts of the profile aren’t synced?
I dunno about that guy. I’d like proper PWA support. Better VR integration. Both in Linux.
Off the top of my head:
- better/more consistent sync
- container windows
- setting a default container for ctrl+t (and maybe shortcuts for other containers)
- a more user-friendly version of about:config
- more control for automatic data deletion aside from manual and when firefox closes (e.g. delete history+cookies older than 30 days)
would all be significantly more useful than any ai features the devs are currently working on.
A few bug/glitches I noticed and performance improvements are always welcome (I don’t think running ai services and integrations will improve performance)
There should never need to be a “kill switch” for a feature the developers have full control over.
Just make it opt-in. An AI kill switch makes me think that they’ve got a setting that will block all known AI interfaces and generated content, which is not what this does.
They lost me already. I’ve migrated away from base Firefox.
As a Firefox user, this is not long-awaited. It’s a tepid excuse for a dead project. The forks of Firefox are the only real alternatives if you value privacy over convenience. If you don’t, then there are faster browers than FF anyway.
Too little, too late for me. I’ve already moved to Librewolf on everything with a GUI. Ironfox on my phone
what’s the fedi opinion of ung00g chromium flatpak these days
I’ll use it, but I know that doing so will put me on some sort of asshole list and you will fuck me over.
And I’m fine with that DO IT put me in the alligator camp or whatever, I’m done and done
Did they ever tackle all the data collection they introduced? iirc it was opt out not opt in
Nope… And ads built in is still a thing
Where?
There a bunch of sponsored stuff on the new tab page they get paid for.
What the hell, i didnt know about that, i guess im still happy with Librewolf
Same here
I was a Netscape navigator user back in the day, so I’ve come and gone from Firefox a few times. I already switched to librewolf on desktop and Vivaldi on mobile. I appreciate them doing this, but I’m not switching back until there’s another forcing function.
I’m just using the Firefox ESR client until its phased out.
I’m just using Zen. Has a ton of improved features and aesthetics.
Most forks use the ESR builds for stability. So if you ever want to switch one of those, the transition should be smooth.
