I own a 'BlackDroidBerry' cell phone--a Blackberry Key2 LE--which came with Firefox installed. I don't know how to determine which version of Firefox that is.

Is there a way to update the Firefox on this phone without granting access to the 'Google Play Store'? Because I value my privacy, I have this phone locked down so tightly that all it can do is receive text messages, make phone calls, and use Firefox. I REALLY don't want to let Google past my personal firewall....