YouTube Windowed Fullscreen by mateusbadalotti

Fill your browser tab with the YouTube player. Includes a player button and a customizable keyboard shortcut.

Download Firefox and get the extension

About this extension

Watch YouTube videos across your entire browser tab while keeping the address bar and tabs visible.

Toggle windowed fullscreen with a button beside YouTube's fullscreen button.
Use Option + W on macOS or Alt + Shift + W on Windows, or record your own shortcut in the extension popup.
Press Esc to return to the regular player.
Add startWindowedFullscreen=true to a video URL to enter the mode automatically.
The popup follows your browser's light or dark theme.

Your shortcut preference is saved in your browser's sync storage. No analytics or tracking.

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