It absolutely used to suck performance wise since I used an S4 for about 2 years. Since then, it’s been great. As someone who used to dislike the performance, and now loves it, even over chromium stuff, I can safely suggest your oversimplified opinion is without any real basis. Sucks is such a vague word, and I guess it stops you having to detail and rationalise your personal opinion.

It’s always been great on the desktop.

For default search.

I’m sure you’re aware Firefox isn’t in the search market. They are in the browser market and need to fund browser development. They’ve used Yahoo in the past and will go with whatever deal gives the best value. They could go with Bing if they wanted.

Funding from them does not mean control, and your insinuation is misleading and false.