YouTube Fullscreen Theater Mode

by Gabriel Erbetta · Functionality & UI

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Makes YouTube theater mode fullscreen, using the entire height of the browser viewport for the video player.

Users

685

−35 in 30 days

Rating

4.6 / 5

−0.15 in 30 days

Ratings

+1 in 30 days

Store rank

#37K

#31K among extensions

Version

1.0.0

updated 30 Oct 2024

Users

monthly, 2 years

Latest, 15 Oct 2026: 685 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years

Latest, 15 Oct 2026: 5 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About YouTube Fullscreen Theater Mode

Makes YouTube theater mode fullscreen, using the entire height of the browser viewport for the video player. Works for regular videos and for livestreams. - Page is scrolled to hide the YouTube header - Chat is also resized to occupy the entire height - Doesn't change the page when theater mode is disabled And that's it. A simple improvement to you viewing experience.