Greasy Fork

double audio, and audio playing before I hit play on videos

WHen I try to watch youtube videos every time I go to the video, the audio for the video will begin playing even thought I have not hit play on the video, and even if I hit play on the video it will begin playing a seperate audio sequence of the same video.

I have tried to simulate this issue in Chromium/Linux, but I don't see it. You could try this script: http://isebaro.com/viewtube/

I experience the same issue in Firefox 51.0.1 (64-Bit).
The mentioned script http://isebaro.com/viewtube/ shows no handy buttons for download etc. on Youtube.

try the update and tell me if that fixes the issue. I know there is still a problem with Metacafe, but I do not have enough time to fix that one at the moment.

I'm sorry, but also with 2017.02.20 this issue still occurs on YouTube.

which video plugin are you using? Or is it just the html5 player?

It is the HTML5 player.

Can you please try the current version again?

Now it works, but some videos do not play anymore with message that format or MIME type is not supported.

Double sound on YT - I had this too a few weeks ago. I disabled html5-autoplay in FF. Type "about:config", then search for "media.autoplay.enabled" - and set it to false. This helped in my case.

Could you give me a link to a video, where it says format or MIME type is not supported? Could it be you want to play a video with a format not supported by your browser? You could try to use the vlc plugin or a different video format.