I can&#x27;t speak for Mozilla at large, but I&#x27;ve had the pleasure of witnessing both Mozilla&#x27;s Rust and Servo teams at work and can assure you that they are at the top of their league. To pick just two examples, Alex Crichton is an unstoppable machine ricocheting around the compiler, standard libraries, package manager, various miscellaneous tooling, and dozens of libraries in the broader Rust ecosystem leaving patches in his wake (all while finding time to perform legendarily detailed code reviews); meanwhile, Patrick Walton is an awe-inspiring graphics programmer and browser engineer whom I am convinced is among the top five humans with back-to-front understandings of the CSS specification, and by now is likely the world&#x27;s foremost expert on cross-browser CSS quirks and edge cases.<p>TL;DR: I&#x27;m a squeeing fanboy for a lot of the people in Mozilla Research.