woops sorry about that. Yeah you're right, you can't actually add custom response headers, just pick from the list of response headers they give you
From looking through Bugzilla, it seems there's been quite a few tickets to add this to Firefox and some work on it was even done, but never got merged in due to some existing bugs
From looking through Bugzilla, it seems there's been quite a few tickets to add this to Firefox and some work on it was even done, but never got merged in due to some existing bugs
Sorry for this misinfo