Comments are a little strange.

Only permission it needs is access to Twitch.tv, like the userscripts, and other proxies, you can ONLY USE ONE AT A TIME.

If you combine userscripts, extensions + userscripts, or multiple extensions doing the same thing, NONE OF THEM WILL WORK.

USE ONE METHOD AT A TIME OR THEY OVERWRITE EACH OTHERS CODE and you will have some weird things going on.

Anyways, this one has worked for the past few weeks, especially after I removed the uBlock userscripts that seem to die every few days and load streams in 480p.

For me the Ad will pop up, and then cut out literally a second later and be back to the quality settings I had.