Are you referring to technical implementation or the poor anti-privacy decisions they keep making when you say 'slightly better'? I have not given up, but I am profoundly disappointed and for somebody who says they have used FF for so long, it feels like I am being gaslit when you say they are peachy.

People have problems with what they choose to program, not the quality of their code. I too have used FF since the beginning, but switched to Waterfox last year (it took me about two years to make that decision - I didn't make it lightly). I chose WF in large part because its profile remains compatible with FF so I can switch back if they calm the F down and start acting normal again for long enough to rebuild some trust.

https://en.wikipedia.org/wiki/Criticism_of_Mozilla_Corporati... - start at the end for most recent.

Also go to the website of any one of the FF forks and read their reasons for existing. For example:

https://www.waterfox.com/#why-waterfox