How do I make Firefox auto-refresh on file change?

Question

Does anyone know of an extension for Firefox, or a script or some other mechanism, that can monitor one or more local files. Firefox would auto-refresh or otherwise update i

Answer 1

I think that you can solve it by using some ajax requests after a determinate interval. You can do a request to CSS files and then if you don't get the "not modified" header you delete your css and load it again. For dynamic files you do a request and store the response and then every time you make a request to that file you compare the response to the latest.