This is the point that company breakups start to make a lot of sense.
When Google can do something that every one of it's users hates and none of us can do anything about it, they perhaps have too much market power.
I don't think this is remotely the case. Quite a few tech-savvy people I know (some of them software developers) use Chrome and mostly don't care about whatever Google does with it. I mention "manifest v3" and get a blank stare. I talk about advertising and ad blockers, and most people don't care, with some of them not even using ad blockers.
We really live in a bubble, here on HN. Most people think of privacy as some abstract thing that they have little control over, and are mostly fine with that. And some are even also fine with government erosion of privacy, in the name of "save the children" style arguments, and of corporate erosion of privacy, in the name of getting free stuff in exchange for their personal information.
It's a sad state of affairs. If most people really did care strongly about these sorts of issues, then I think it would be baffling why we haven't seen more change here -- after all, Firefox is a perfectly viable alternative to Chrome that very few people use. But the lack of change is no surprise: most people don't care.
I don't use Firefox because it's slower than Chrome and because their behavior regarding limiting which extensions are available in phones, requiring signed extensions, Firefox Pocket, ads in new tab page, etc, does not exactly give me confidence that Mozilla truly has my interests in mind. In fact I bet they'll implement the nightmare DRM API once it's done swiftly and without complaint lest their money flow suffer.
If Mozilla ever decides to stop screwing around, clearly position themselves as an ally of the consumer, clearly express support for adblockers and put resources into making the browser faster and better and more customizable instead of whatever makes their CEO richer then I'll switch to Firefox even if it is a bit slower or has some flaws.
In the meantime uBlock works right now in Chrome which makes it usable, so since Chrome is the fastest right now, Chrome it is.
Look, I will absolutely criticize Mozilla for some of its policies. Pretty much every issue you've raised there is spot-on, in fact I'll go a step further and remind everyone that Pocket was kind of supposed to be Open Source by now, and it still isn't.
But it's cutting off your nose to spite your face to use Chrome. Google is less receptive to criticism than Mozilla is, has worse extension APIs and is more restrictive of how extensions get installed, has worse privacy features, allows for no extensions on phones, is more directly tied into an advertising network, and is actively trying to make the web worse.
Use Firefox.
I am not telling you to be complacent or to ignore Mozilla's problems, I am telling you not to lend support to the browser that is actively trying to make the web worse. We're all very happy for you that you're very principled about not just picking the better of two bad options. We're happy that you have those standards. But we're less thrilled about your policy of picking the worst of two bad options. At the very heckin least you're not even going to use a Chromium fork? You're just going to make the worst browser choice you can make for the Open web?
That's true, I was talking about desktop, I probably should have not mentioned the phone extension thing.
In Android I use Bromite (a Chromium fork) which I should probably replace since it's fairly outdated at this point.
But you're wrong about me not using Firefox out of spite, the real reason I don't use it is because it is (or apparently was according to the other replies) slower to the point it is noticeable, at least on my desktop (and even more so on my old phone). The rest is just why I don't support them despite being worse.