I originally really liked this addon as it worked perfectly and added a lot of nice features. However, they main reason I got it was so that I could alter the playback speed of the videos. At first it worked perfectly but now when I try to change the speed instead of evenly moving up a little bit at a time, it zooms ahead as if I spun the wheel like crazy. I can't find any way to alter the speed at a reasonable rate other than to open the settings and change the default speed. Fairly useless to me now.