Actually, I would too, if that money is guaranteed to be used only for Firefox development. And only that. Not to pocket, not to an inept C-Suite, not to their political activism. Not to any experiments outside of the core browser.

But that's not even possible. You can only donate to the Mozilla Foundation, which uses the money for whatever they like.

It won't because people that currently use firefox would definitely switch over to chrome/chrome-based browsers then.