Superb extension! On Linux (FireFox), the blocking is instant and invisible. On Windows (Edge and Chrome), there is a millisecond of ads before SponsorBlock kicks in, but even so, it makes such a huge difference. Thank you so much!

Makes youtube tolerable. Thank you everyone who submit sponsor data.

The extension started to freeze after rewinding the video.

My all time favorite extension. You have no idea how much you need it, until you do try it. This combined with another extension of this creator does give the best youtube experience out there. Such an useful extension, thank you for creating it Ajay