Detaching google account from browser/wiping browser?

[Girlofsteel]

I'm going to try and not just flame google here and they're absolutely horrible account system which seems aimed at prying its way into every facet of your life and making sure anonymity is absolutely impossible....

I could use some help getting around this system, if anyone knows how!

All I want to do is find a way to make Firefox COMPLETELY forget that I have ever signed into a google account on this computer EVER, and let me sign into a different account.

I don't ever need to go back to the other account on this browser, I want firefox to use my anonymous email, and chrome to use my main email.

I could completely wipe firefox, burn it to the ground, whatever works honestly as long as I can use a different email account