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 who gave me some pointers. The [http://forums.mozillazine.org Mozilla forums] were definitely helpful too, especially when the postings and discussions 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.

You have to start somewhere. By starting means actually <b>doing it</b>! Don't be intimidated. It might seem overwhelming but there are resources to help you go through that phase. Don't ever think that contributing to Mozilla is out of your realm of ability. If there is a will, there is a way!