I spend more time on the computer/internet than on anything else (I know, I know!). Now, I do watch a lot of Youtube videos, but in order to not get distracted I have to launch them with the volume muted, that is, all the videos I launch should be launched with Volume Muted. 

And when I am done with my work, I will play the videos by manually increasing the volume. 

Is there anyway that I can ensure that the Youtube videos are all launched with the Volume muted. 

Note: Muting the laptop/desktop volume is not an acceptable answer ;-)