From my experience in building Mozilla Firefox, I have learned the value of working in a community. I wouldn't have successfully built one of the world's biggest projects hadn't I met [[User:Sancus|Sancus]] in irc://irc.mozilla.org/#seneca and who gave me some pointers. The Mozilla forums were definitely helpful too, especially when the postings regard to the same problem you're encountering. Not only have I made a friend!, I've also successfully built one of the world's biggest projects and have stepped my foot in the Mozilla community. This experience is definitely an eye-opener.