Mozilla is one the most important tech entities in the world at the moment. Web browsers and email are currently people's bedrock interface with the internet and Firefox (and to a lesser extent Thunderbird) are the only such mainstream applications which remain outside the complete dominance of commodification.
We might disagree with some things that Mozilla have done but they are in the increasingly unique position of having to maintain integrity and accessibility in a constantly narrowing space. That's because we, as users, keep using them, keep supporting them and keep demanding the best of them.
Big up Mozilla!