YouTube Tab-Fullscreen

Name: YouTube Tab-Fullscreen
Author: xander1614

Twitch-style tab-fullscreen experience on YouTube

As of June 2026, YouTube Tab-Fullscreen has 37 users in the Functionality & UI category.

xander1614 Functionality & UI

Chrome Web Store ↗.crx

Users+362.5%

Rating0%

—

— reviews

Reviews0%

—

Version

1.2.0

Manifest V3

History

6 snapshots

Tracking since Apr 6, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 6, 2026	8	—	—	1.2.0
Apr 18, 2026	7	—	—	1.2.0
May 8, 2026	10	—	—	1.2.0
May 15, 2026	9	—	—	1.2.0
May 24, 2026	12	—	—	1.2.0
Jun 3, 2026	10	—	—	1.2.0
Now	37	—	—	1.2.0

Permissions & access

Permissions: activeTab
Host access: None declared

Screenshots

About

YouTube Tab-Fullscreen

Expand YouTube videos to fill your entire browser tab, similar to Twitch's theater mode.

What It Does

This extension adds a tab-fullscreen mode to YouTube. Unlike regular fullscreen, the video stays within your browser tab so you can still see other tabs and use browser shortcuts.

Features

- Expand videos beyond standard theater mode to fill your tab
- Press Alt+T or click the toolbar button to toggle
- Remembers your preference as you browse videos
- Matches YouTube's native design
- Lightweight (under 50KB)

How to Use

1. Install the extension
2. Go to any YouTube video
3. Click the button in video controls or press Alt+T

Privacy

- No data collection or tracking
- No external connections
- Only requires activeTab permission

Compatibility

- Works on all YouTube video pages
- Supports Chrome, Edge, Brave, and Firefox
- Compatible with YouTube Premium and other extensions