How to replace a javascript file request with contents from another file in a FF addon?

问题

I'm looking for some guidance on how to replace requests for a specific javascript file with another file that I'll package with the Firefox addon.

回答1:

See How can I implement a content converter in Firefox for all page elements? (its scope is much wider than what you really need -- read on) on how to use registerFactory to register a surrogate HTTP protocol handler, which can then instantiate channels with alternate (e.g. file:///...-type) URIs when newChannel is called with your particualr script's URI.

来源：https://stackoverflow.com/questions/3122854/how-to-replace-a-javascript-file-request-with-contents-from-another-file-in-a-ff