generally some radio button like options in the settings for resource usage like max performance, balance and power saving would probably work easiest just like how you have Security Levels under Security in Security & Privacy
Sometimes, I have a bunch of tabs in a tab group which makes collapsing that group tedious as I need to hold the left horizontal scroll button to expose the tab group icon to collapse it.
They should give a no frills option to disable all AI for the users that dislike it. After all, Firefox should be about user choice. A better solution than just one on/off switch for AI would be a whole tab in the Settings with a toggle for AI at the...