Click to run - this was the default for a long time in Opera. I miss those days, It's settable in Vivaldi, therefore probably all chrome/chromium browsers.
I find this the perfect solution to flash - you only see what you right click and "run plugin" on.
It's almost a shame html5 video isn't a plugin. I did put in a feature request for Vivaldi not to autoplay videos. Meanwhile I have a plugin that stops HTML 5 vids from autoplaying
Biting the hand that feeds IT
