Fullscreen Anything for Chrome: The Ultimate Guide to Using It Effectively

Fullscreen Anything for Chrome — Tips, Shortcuts, and Hidden Features

One-click fullscreen: Click the extension button to maximize images, videos, or embedded games to fill the browser window (not OS-level fullscreen).
Toggle back: Click the button again to restore the page.
Work well with HTML5: Designed to detect and maximize HTML5 video players (YouTube, Vimeo, etc.).
Multi-monitor friendly: Maximizes content within the current browser window, so it works across multiple displays without switching OS fullscreen.
Ad hiding: Some builds hide surrounding ads/overlays to give a cleaner view.

Ctrl + Space — enter/exit the extension’s windowed fullscreen (default reported in the Web Store). If that doesn’t work, enable/modify the shortcut at chrome://extensions/shortcuts.

Element selection mode (similar variants): Some forks/extensions let you enter a selecting mode where hovering highlights page elements and clicking one fullscreens only that element.
Playlist & consecutive videos: On supported sites, the extension can keep playlist navigation working while maximizing the player.
Windowed fullscreen vs. F11: The extension enlarges the element inside the browser (you can still see the address bar and switch tabs), unlike F11 which hides UI and goes true fullscreen.
Whitelist/blacklist: Some related extensions offer per-site controls so the auto-video detection or autoplay behavior can be restricted to trusted sites.
Manifest V3 compatibility: Modern versions run as service workers (updated internals), so installing from source requires enabling Developer mode and loading unpacked extensions.

Shortcut not working: Check chrome://extensions/shortcuts and ensure no other extension or OS shortcut conflicts.
Player not detected: Try clicking the extension icon instead of the shortcut, or use an element-selecting variant to click the video element directly.
Permissions blocked: If behavior is limited, open chrome://extensions, enable the extension’s access to the site, or reinstall the extension.
Legacy removal note: The original Fullscreen Anything was removed years ago; modern versions are reworks or forks—confirm the publisher before installing.

Prefer extensions with clear source (GitHub repo or verified store listing).
To install from source: clone repo → chrome://extensions → Developer mode → Load unpacked.

If you want, I can create a one‑minute setup guide that walks through installing, configuring the keyboard shortcut, and testing with YouTube.