The Try Server here at Seneca College is an Open Source project, where people can test a patch to Mozilla against all three platforms(OSX, Windows, Linux) at once. This allows people to see if their patch will compile on all three platforms before submitting a patch. This system also allows people to build Mozilla with their patch much faster than their personal computer would (usually).
The Try Server is available to all Seneca College Students and Faculty. If you are not a Student or a Faculty member at Seneca College, you may still request an account, provided you have a good reason.