Mozilla has always been political. It was born so. Why do you think Jamie Zawinski got Shepard Fairey to design its logo? The Mozilla manifesto is full of political statements. Do you remember the fight against DRM? Net neutrality? SOPA?
Often, people that speak like you mean “speech favoring equal treatment” instead of “politics”.
https://www.jwz.org/blog/2016/10/they-live-and-the-secret-hi...