Fit To Screen by TheY2T

This extension allows you to fit to screen YouTube and Twitch video feeds regardless of aspect ratio when in fullscreen mode.

This extension allows you to fit to screen YouTube and Twitch video feeds regardless of aspect ratio when in fullscreen mode. This is especially handy for people with older LCD / Plasma screens that do not support 16:9 or 16:10 ratio and you're always getting letterboxed screens as a result. Use this tool to avoid losing 30 - 40% of your already smaller screen! This is only for YouTube and Twitch video platforms. I can add more platforms upon request and if its easy to do.