Why does Mozilla Firefox need ads, unless they are possibly prepping up their own search engine? Remember, the CEO once said they wanted to start prioritizing on making money. A search engine, built by Mozilla on the Firefox browser would be perfect, with ads for them.

edit. Another thing, If Mozilla puts ads in Firefox, I believe it would be as easy as just switching to another fork that restricts Mozilla’s tracking.

Now if you do, do this. Make sure the fork you go with tries to update as close to the latest Firefox updates as possible, such as security updates for the browser.