@beny97531 I I installed 7.9.3, from the Chrome store no less, and it's not letting me access the options menu. All it shows is the download button on top of a grey field, which doesn't do a thing when you click on it by the way, with "In order to improve your watching experience, please install Magic Actions app. Magic Actions is 100% Free. No Spyware, No Malware, No Badware," above it. Guess what is sitting in my extensions list? Magic Actions For YouTube 7.9.3. No it does not work "100% perfectly". It works as well as the 7.8 version does, which is not at all.
Until this problem gets fixed, I'm simply won't be able to use it.