Remeber click Extension ... to Enable Always Allow .tv on.

Works great and as promised 5/5!

A+ add-on! Works great. I've been using a similar extension on Chrome for quite some time, and it's about time one was created for Firefox. Many thanks to the dev!!

Thank you for making this addon. Twitch was driving me mad when it was lowering the quality so much so it started to sound like a phone call.