How to Stop Auto-Playing Flash and HTML5 Videos in Chrome

[jeffhere]

Maybe you can try this one:
https://chrome.google.com/webstore/detai...eendpkolai

Many things can be done by user scripts.Take the "Disable HTML5 video autoplay" for example, if you are interested in javascript, you can write a small script to 
remove the autoplay attribute of video tag to disable autoplay and install it to cent browser, or run by Tampermonkey in google chrome.

this one is very nice....and works on most sites I visit....not all, but most.

https://chrome.google.com/webstore/detai...fpkknnebdh