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.
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?