Mozilla is the non-profit that supports Firefox development. What are you asking? Why they don't have a subscription plan? They do have a monthly donation form:

Mozilla is the non-profit that supports Firefox development. What are you asking? Why they don't have a subscription plan? They do have a monthly donation form: https://donate.mozilla.org/en-US/?presets=50,30,20,10&amount=30&utm_source=mozilla.org&utm_medium=referral&utm_content=nav&currency=usd https://donate.mozilla.org/en-US/?presets=50,30,20,10&amount...