[Rumperuu]

As yoklov said, I had to have a small script[1] run a quick check on every page you visit to check if the URL is a Pinpointer URL. As far as I can tell there's no way around this (and I'd say breaking backwards compatibility with HTTP is a bit drastic for a little browser extension like this).

[1] https://github.com/Rumperuu/Pinpointer/blob/master/content_s...

[ChrisSD]

Could you not use webNavigation[0] to check the url and permissions API to ask for permission[1] if necessary?

EDIT: Or tabs.onUpdated if webNavigation doesn't fire for hash changes[2]

[0] https://developer.mozilla.org/en-US/Add-ons/WebExtensions/AP...

[1] https://developer.mozilla.org/en-US/Add-ons/WebExtensions/AP...

[2] https://developer.mozilla.org/en-US/Add-ons/WebExtensions/AP...