How is this different from just pressing F?

YouTube's F key uses the browser's real fullscreen mode, which hands your entire display to the video and hides everything else — your tabs, your taskbar, your clock. Windowed Fullscreen only stretches the player inside your existing window. Maximize the window first and it looks nearly identical, except everything else is still there and still clickable.

Press Escape, click the button again, or use the toolbar popup. Escape backs out one layer at a time: the side panel first, then the mode. Either way the page is restored exactly as it was, right down to your scroll position.

Do the comments still work in the side panel?

Yes. The panel is YouTube's own content, repositioned rather than copied — so liking, subscribing, sorting comments, and loading more comments all behave normally. Closing the panel puts everything back.

What's the difference between cover and scrollable mode?

Cover pins the player to the window and locks page scrolling, so the video is all there is. Scrollable fills the screen the moment you enter but leaves the page scrollable, so the description and comments are one scroll away instead of requiring you to leave the mode. Pick either one per site in the popup or the options page.

What happens if I press YouTube's fullscreen button?

You get plain, untouched YouTube fullscreen. The two are alternatives, never layers — entering real fullscreen stands this mode down completely, and leaving it brings the mode back with your side panel as you left it.

Can I change the keyboard shortcut?

Yes. The default is Alt+Shift+F. Visit chrome://extensions/shortcuts to set anything you prefer, or clear it entirely if you only want the button.

Does it work on sites other than YouTube?

Not yet — YouTube only, and the extension requests access to nothing else. Support for additional video sites is planned.

Does it collect any data?

No. There are no accounts, no analytics, no crash reporting, and no network requests whatsoever. The only things stored are your two per-site settings, saved locally on your own device and never synced.

LIVEProductivity

Windowed Fullscreen

Full-window YouTube that doesn't hide your taskbar

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Native fullscreen takes over your whole display, so the moment you need a tab, a message, or the clock, you have to drop out of it. Windowed Fullscreen adds a second viewing mode right next to YouTube's own fullscreen button: the player fills your entire browser window, but the browser Fullscreen API is never called. Your tab strip, taskbar, clock, and notifications all stay exactly where they are. A second button docks the channel, description, and comments into a column beside the video rather than on top of it, and the search bar slides back in whenever you move the cursor to the top edge.

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PREVIEW

Interface Showcase

CAPABILITIES

Designed for workflow speed.

Fills the window, not the display

The player expands to every edge of your browser window using CSS, never the browser's Fullscreen API.

Your taskbar stays put

Tab strip, address bar, clock, and notifications remain visible, so nothing interrupts you to get to them.

Comments beside the video

One button docks the channel, subscribe, likes, description, and comments into a column next to the player — beside it, never covering it.

Search without leaving

Move the cursor to the top edge and the masthead slides back in, so you can look up the next video mid-session.

Two modes, your choice

Cover locks the page to the video alone. Scrollable fills the screen on entry but keeps the page scrolling to the description and comments.

Nothing leaves your device

No accounts, no analytics, no network requests of any kind. Your settings are stored locally and never synced.

PRICING

Simple & Fair Pricing

Free

Forever free

Windowed fullscreen on YouTube
Comments and description docked beside the video
Cover or scrollable mode, per site
Button, popup, and keyboard shortcut
No account, no tracking, no ads

TRANSPARENCY

Permissions & Data Practices

Every permission listed here has a clear purpose, explained below.

storageSaves your two per-site settings — auto-apply and scrollable mode — locally on your device. Nothing is synced or transmitted.

*://*.youtube.com/*Required to add the windowed-fullscreen and comments buttons to YouTube's player, apply the CSS that expands the player and docks the side panel beside it, and read the current tab's address so the toolbar popup can tell you whether the page is supported.

Data collected: None
Data sent off device: No
Data shared with third parties: No

Read full privacy policy →

FAQ

Frequently Asked Questions

RELEASE HISTORY

What's changed

v1.2.0Aug 9, 2026Latest
- Comments button: docks the channel, subscribe, likes, description, and comments into a column beside the player
- Escape now backs out one layer at a time — side panel first, then the mode
- Fixed the side panel rendering as a solid black column on YouTube's light theme
- Fixed the revealed masthead painting behind the player, which made it impossible to click
- Smoother masthead reveal: quicker in than out, so drifting past the top edge no longer snaps it away
- Stopped YouTube's own top-right overlay from swallowing the hover at the top edge
- Fixed the chapter row wrapping its last segment onto a second line, which painted a stray red line under the scrubber
v1.1.0Aug 8, 2026
- Scrollable mode: the video still fills the screen on entry, but the page keeps scrolling to the description and comments
- The masthead is now hidden rather than removed — move the cursor to the top edge and the search bar slides back in
- Per-site mode setting in both the popup and the options page
v1.0.0Aug 2, 2026
- Initial release with YouTube support
- Windowed-fullscreen button beside YouTube's native fullscreen control
- Toolbar popup with status and one-click toggle
- Alt+Shift+F keyboard shortcut, rebindable
- Escape to exit, restoring the page exactly
- Optional per-site auto-apply