Squashed 'bundle/virtualclass/' changes from c995d87..70d1084

70d1084 added link for chrome extension
c46a0bf Add min
b993244 saved cpu for screensharing on firefox

git-subtree-dir: bundle/virtualclass
git-subtree-split: 70d1084b82498c75806df410b80e9abb3f650a06
Merge commit '524fc923ab78c7fede6406593f79963fc163cad8'