C Curiosity Registered Jun 2, 2015 #1 Is there any way to prevent HTML5 from automatically playing with SeaMonkey using a browser setting in about:config? Flashblock is not working well with YouTube, and its HTML5 videos start playing as soon as the page loads.
Is there any way to prevent HTML5 from automatically playing with SeaMonkey using a browser setting in about:config? Flashblock is not working well with YouTube, and its HTML5 videos start playing as soon as the page loads.