It seems that almost weekly, I am reminded why I love Firefox because of some new thing Mozilla is doing. A lot of good decisions have been coming from them lately.
FF is my primary browser, yet people I know that work in security laugh at me as they claim FF is always the first browser to fail in the hacker games. I don't know enough about why, but I'd love for that to not be a thing. Taking into account my threat profile (types of sites I visit, JS blocking, etc), I feel the hacking risk is still a worth while trade off for the lack of tracking.
To be fair, you did follow it up:
> as they claim FF is always the first browser to fail in the hacker games
What are their sources? I also "know such people" and I am unaware of such claims. If one uses Kali Linux, it has Mozilla Firefox as default browser. The same for Debian (on which Kali is based upon).
The thing is, you can harden your browser after installation. The first thing I do with a browser is installing uBlock Origin and uMatrix.