@TeamYouTube I need help returning my YouTube Player Size back to normal. I cleared Browsing history for the first time in like idk a year and it made my YouTube Video player window go huge and I dont like it. Please Help.
Thanks for all the info. Could you try clearing your browser's cache and cookies to see if it helps? Here's how: https://goo.gl/dwzcyo . Also, try on a different device/browser. Keep us posted.