Good friend for SW Engineer.
You should be need it.

However I would LOVE to see an option to modify the URL string of a request :) If that is possible of course. Many thanks and good luck in your life!

Edit: Found Redirector extension for that :)

It works as expected. Only missing feature is a better support to regex expressions.

Since RefControl is not compatible with firefox 57+ I use this addon to replace the Referer header. Works great!