*NOTE*
I am currently rewriting this and hope to have something in a couple of weeks.
It can be frustrating to manually reinstall Firefox with all its extensions, themes, personas and other add-ons. Even for those administrators who need to deploy Firefox on hundreds of network computers will find it a cumbersome task to do it manually. To assist you in building a silent Firefox installer with all of the settings preset, here is FFaM, aka Firefox Addon Maker.
This is an application...