"Mozilla built an AI kill switch into Firefox after its users demanded one. Only 1% have used it. Another 3% turned off some AI features selectively. The rest left everything on."

Poppycock. The people who turned off all the AI had already turned off the telemetry that measures this.

@nyquildotorg
Also, I know for a fact that some Firefox users (at least one) are not following all developments of their browser of choice all that closely. Such people may have been unaware of the existence of this killswitch.
Until they saw this post, that is.
They have now probably blocked all AI features.
@Thijs_Goverde @nyquildotorg when it was added they did put it prominently on the update tab, but I guess many people just immediately close that without reading