meanwhile russians: what is ads?

Is this something that will only affect Google Chrome or other chromium based browsers immediately? I'm on Firefox already but the change isn't so appealing to friends who are on Google Chrome.

I've tried firefox but there's one main issue that I haven't been able to find a way around. I have a macbook from work and am able to switch between full screen applications with control+left/right arrows or swipe gestures which I use all the time. When I open Firefox in full screen, it seems to lock itself as the full screen application. Anyone know if there's a way to prevent that? It's really annoying and just messes with my entire workflow. It's literally the only reason I haven't made the switch yet.

I just a bookmarklet to block the ends after the page load

Has anyone else had trouble with Google search on Firefox for Android recently? It freezes after it provides results so I can't click links. Weirdly, I don't have this issue with Chrome, Edge, or Samsung Internet.