Stipefoarum foar Firefox

I have tried for literal years to fix this problem so I can switch to Firefox, but haven't been able to get any help. I'm serious. I wanted to switch to Firefox back in 2020 and had this problem.

I've tried:

- Finding and adjusting any setting or preference that has to do with font size. It doesn't help.

- Uninstalling and deleting all of Firefox from my computer, then redownloading the newest version and installing that. This has happened over several versions.

I had to zoom in on this page just so I could type this, lol!

I'm attaching screenshots that show the problem. The top bar (the system font from my mac) vs. what I see in Firefox.

For reference, I have a macOS that's running Monterey v 12.2.1. It's a macbook air (13 inch).

Is there any fix for this? If not, is there another non-chrome browser you can recommend?

Thanks so much, since I know you're a volunteer and doing this just because you're a helpful person. And sorry to sound frustrated. I just have kept trying to fix this myself and had no luck!

I currently am running FF vers. 109.0.1 64 bit on Win 10 pro. I don't like what I've been reading about the latest update, my machines are old and I'm not ready to upgrade so I don't want an even more overloaded/uses up more CPU, etc., version of Firefox. I don't have complex needs in a browser, so some of the "upgrades" haven't been useful for me or have made using FF more difficult.

  I found a list of what I guess are older versions but no information was provided on how to choose a version of say v. 110, to make sure it's the right one for my laptop and/desktop (or the one that will work w/the fewest problems) that it's in English, etc.   
  My impression is that FF is mostly worked on by people who have a variety of needs & interests so increasing sophistication is what they want and that's fine, I'd like to keep using FF w/my current machines, w/as simple a version ,ie., useful for an unsophisticated user.    Is that possible?    If so, I'd like to upgrade to 110 64 bit or perhaps 111 64 bit unless either or both had huge security holes, etc and many users found they weren't very functional.   I do have security software.

The "shield" icon for turning off tracking protection cannot be turned off completely. It seems you have to do this for every single website. This feature (curse) makes almost all websites non-functional. How do I turn this off completely? If I cannot eliminate this I will change to another browser.

After signing up for an account I am getting bombarded by emails from Mozilla. I follow the links for "unsubscribe" and "manage your communication preferences" within each email, as well as going through "Manage Account" from the Firefox browser. All paths lead to: https://www.mozilla.org/en-US/newsletter/existing/ Which says: Something is amiss with our system, sorry! Please try again later. This has been the case now for over a week, so I assume it's not the system. I have tried multiple browsers, I always get the same message.