I love Firefox (and Chrome! no need to be zealots :D ), but I'm even happier that this means there will be no interruption to the full-time development of Mozilla's new systems programming language, Rust:

http://www.rust-lang.org/ https://github.com/graydon/rust

Coincidentally, for those who like to make much ado about Mozilla vs. Google, Rust has a lot of similarities to Go. (As both projects began as semi-secret, low-key affairs, this is due more to convergent evolution than anything.)