I ticked the "don't choose for me" button. It sort of worked.

Though it still chooses what it thinks, with an obviously more recently watched filter. Once several years ago I watched a single video on a really novel ICE engine configuration, and ever since it pushes the "Ford V8 invention" video at me. Despite a more recent interest in electric propulsion.

But then I do like to play with their algorithms, which let's face it, are driven by any and all your surfing history. Even if you search via other search engines like I do, every clever website is using JScript which is a free Goggle product - each time it is accessed, Goggle knows a bit more about you. Watch the sites load and look for waiting for google.apis flash up (or down on FireFox, bottom LH corner).

Mozilla maintain they are independent, but given the symbiosis with Chrome, you can be sure there are internals to make anything Goggle related easier to load and parse. And collect.