This should solve the full-screen problem in most cases. If you try restarting your computer and find that the full-screen issue persists, try each of the following methods.
If you don’t see this option, you have not applied a theme to Chrome.
Chrome updates can also cause some older extensions to become unstable, which can result in unusual errors.
Repeat this step for any other necessary extensions before proceeding.
If Google Chrome is up to date, skip this step and the next one.
If Google Chrome is up to date, skip this step and the next one.
If your video still isn’t playing in full-screen mode, try one of the remaining steps in this method.
Click ⋮ in the top-right corner. Click Settings. Scroll down and click Advanced. Scroll down and click Restore settings to their original defaults. Click Reset settings when prompted.
You can reinstall Chrome by going to https://www. google. com/chrome/, clicking Download Chrome, clicking Accept and Install, double-clicking the downloaded setup file, and clicking through the on-screen prompts.
