For the last few weeks, Firefox freezes up occasionally. Sometimes, I have to Force Quit to get out of it as Quit Firefox won't close the program. Using Ventura 13.0 on a M1 MacBook Air. It was happening before Ventura as well. Fairly recent issue.
Try a different version, install in a different directory than your current install and see if you have the same issue. https://www.mozilla.org/en-US/firefox/all/#product-desktop-release
I've been having the same issues mainly on Windows since 102. Which is why I run multiple versions of Firefox on all my computers.
@Ray, did you solve your problem? And if so, how?