Want to disable autostart videos
This machine (Alienware M17 laptop) often crashes when a video starts playing. Is there a way to prevent videos automatically playing, particularly in Facebook. It's not just in Vivaldi.
Facebook has its own setting for that. Check it's settings.
Some common famous social media service seem also have that too.
For the rest of this planet HTML5 video, either I disable scripts (blocking 3rd party scripts usually enough) or I use this https://chrome.google.com/webstore/detail/disable-html5-autoplay/efdhoaajjjgckpbkoglidkeendpkolai
For Flash video, just block them.
Forgot; there's extension with same name in Firefox, different author, work same. For Opera, it's same author with the chrome one.
Or this (like above)
@dleon Many thanks.