I'm kind of conflicted. On one hand, there's Chrome, but it's used by Google to help US government spy on you. On another hand, there's Mozilla. Both good browsers but are being developed by pretty evil people.
Please remember that Mozilla is not one person. Mozilla is a global community of people, staff and volunteers, working to protect and care for the web in a way that no other group of people can. We are not perfect, but we are generally good people, and we are trying our hardest to do good, selfless work.
Be angry about Brendan, but please do not let your anger cross over to the project itself. Mozilla is about so much more than one executive.
Code, especially of the FLOSS kind, is not really 'evil'. I mean I guess you could write a free system for censoring or something, but it's not like a closed version wouldn't pop up in its place and be just as hard to circumvent. Anyway have you looked at GNU IceCat? It's a fork of Firefox that doesn't recommend any non-free addons and has some other privacy features baked in.