Create a user configurble URL modification
(finally able to activate my account)
I would see as a good feature to have URL manipulation done automatic by the browser, based on domain rules.
Case in point, Invidious
It could turn this: https://invidio.us/watch?v=Yw6u6YkTgQ4
into this: https://invidio.us/watch?v=Yw6u6YkTgQ4&listen=1&autoplay=1
Also, I see it as a fitting feature for the 3.x version, since the browser already does URL manipulation (to remove facebook tracking and such). Meaning it would hardly require Privacy View. Please correct me if wrong.