@firefoxwebdevs
I don't think the definition of opt-in is anywhere near that ambiguous. Do you think the Edge Copilot button 'did nothing until pressed'? Sure, you add the button. Then it's too slow to open so you cache things first. Then on first open it's not relevant, so you train from the start. All along advertisers want the data. (You'll recall that you removed "we won't sell your data, ever" from your web site.)

Right now to disable features like ai and ads and coupons I have to go into about:config. If you're confident users want those features, why not make them disabled by default and make users open about:config to enable?

(And let's face it, Mozilla has a frequent habit of turning disabled features back on during even minor updates.)

You could make all of this an add-in that has to be installed, like you should have done from the beginning. Including unwanted, unrelated features is the force-feeding that users hate and nobody important at Mozilla seems to understand that.