Wouldn't it be easier to assign bugs on bugszilla to fix, rather than do all this fancy side projects with little or no support from firefox devs. At least the firefox devs/peers can help out with bug fixes. I rather a person spend one summer fixing one firefox bug, than incrementing any closer to firefox/bittorrent integration. http://tirania.org/blog/archive/2006/Apr-13.html
In summary: "One possibility [of why they succeeded over mozilla.org] is that much of the work got integrated into a larger vessel (class libraries or other tools). The larger vessel exposed the code to more people, and ensured that it did suffer bitrot."

Hi, Nice!