Earlier quoted context omitted.
Don't Chrome and Firefox do this by default now? Automatically download an update in the background and install it without asking when you close the browser window?
Do not compare an a paid OS I run a business on which upgrade one entire version, force rebooting, freezing my machine and introducing incompatibilities and spywares with an free opensource browser that I can merely swap with any competitor at a click of a button in my start menu. I don't run my main source of income on Firefox or Android. I didn't pay a licence for a browser or a phone OS. I can't find a quick alter…
For me, OS doesn't matter one bit. Sure, one could be more convenient with certain features, but in the long run, everything I do at work depends on the browser, and specifically depends on Firefox. The application I support at work is programmed to work on Firefox and it's the only browser it's tested on. If Mozilla made some breaking change and I was automatically upgraded, my work comes to a screeching halt. Maybe I don't even notice something is broken until I'm giving a client demo. Pretty embarrassing, huh?
So yeah, I can compare an OS to a browser, because the same purpose that the OS serves for you, the browser serves for me. I can't just switch browsers with a click of a button. I can't find an alternative. It's Firefox or nothing, a supported version of Firefox or nothing. Funny how some people have different needs, and funny how some people can dismiss those needs without even a thought, just because they may not apply to themselves.
But luckily my work controls what version of Firefox is released to our PCs. It's not pushed to our internal yum repositories until it's been tested. And funny enough, if your business really depends on a stable Windows environment, you have the tools to do the exact same thing. I recommend you use them.