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.
Alternative interpretation: the CEO had the focus on pushing the imaginary game-changer and so the controls came later.
Moz: We’re an AI first browser. There’s AI in everything now!
Everyone: Boooo *uninstalls*
Moz: We’re not an AI first browser. We’ve added these control features so you can reduce the AI.
Disable the AI*
After all that’s the only reason for a “killswitch”, no?
Oh my sweet summer child
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.
Mozilla’s CEO also recently said they would be building new products based on pre-established trust. I think they got their chronology wrong on that too…
Right, what trust? The trust they lost by putting dumbass MBAs in charge who don’t know shit and chase short term profits over sustaining a healthy community?
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.
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.
Too little, too late for me. I’ve already moved to Librewolf on everything with a GUI. Ironfox on my phone
The fact that they can’t find enough utility in AI to make people want to use it is telling.
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?
Sponsored stories, sponsored top shortcuts, even the weather is sponsored. There used to be an “off” switch directly in the NTP settings, but they pushed it into the settings menu.
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’ve always seen “kill switch” being used in a negative tone, so with how the headline is written, it sounded like some AI feature that could kill the browser itself was implemented.
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.
They lost me already. I’ve migrated away from base Firefox.
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
