Loved it! Rated 5 out of 5 stars

The addon does not require browser restart, so it was just install and use. First test, and my little netbook attempted to play the video and loaded the first second... but was caught in the act and stopped. I loved it in the first use. I bet my desktop would run it faster and stop the video before any load. Nice add-on. I just want the same add-on for Chrome!

This review is for a previous version of the add-on (0.1.0). 

Thanks for your review. Actually addon waits until the first frame is loaded. This is because complete video information (required to start playing after block) is not available until the first frame load.