I think Firefox should be considered dead.
They responded to this backlash yes, but only really because of historical accident. They don't want to create a privacy-focused browser, and they don't like their privacy-focused users. They will enshittify, it'll just take longer because they have to play "just the tip" more carefully.
The alternative landscape is not there yet, but there' some hope. Ladybird seems like it's the farthest along, with the dev successfully using it to order a pizza online:
https://xcancel.com/awesomekling/status/1846607417343463524
Servo is not quite as far as Ladybird but is making good progress. Here's a recent HN thread about the 2024 progress update which links to a general progress comparison. The numbers need to be taken with a grain of salt, because Google has pushed through a number of "standards" that nobody else will implement except for them