That looks great! What type of extension?
I am building it as a web extension for Mozilla Firefox and Google Chrome. It may, or may not be released.
I think that that would be a great tool. Would you have to pay money or something?
If You made it, can we have acess to that too?
No, but if it does get released I would encourage donations to help run the proxy.
Not yet, it is still a work-in-progress.