I know that Firefox has a setting to disable autoplay. Sure wish Slim Jet had the same.
Interesting that your Chrome browser won't play videos. A blessing in disguise? Are you running the latest version, 59.0.3071?
Oops sorry my bad
Also I misstated, I thought I had chrome but don’t
(no wonder I’m always asked to download Chrome which I do not want)
I Just use IE in 2 different modes plus firefox
That auto play was driving me nuts, especially if I open several windows and then do not know which one has grabbed my speakers!