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Theater Mode Pro – Fullscreen for YouTube

Chrome extension by Yikai · Productivity · Tools

A Chrome extension in Productivity · Tools with 1 000 users, a small but real audience.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
1 000
Rating
4.7 (15 ratings)
Users, last 15 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
2.2.3
Updated in the store
2026-08-06
Published
2019-12-10
Manifest
V3
Browser access
6 permissions, 1 site pattern

How it has moved

Users
unchanged since 01.09
1k · 2 readings
  1. 2026-09-011k
  2. 2026-09-151k
Rating
unchanged since 01.09
reviewsrating 4.73 · 2 readings
  1. 2026-09-01reviews15rating4.73
  2. 2026-09-15reviews15rating4.73
Users
unchanged since 01.09
1k · 2 readings
  1. 2026-09-011k
  2. 2026-09-151k
Rating
unchanged since 01.09
reviewsrating 4.73 · 2 readings
  1. 2026-09-01reviews15rating4.73
  2. 2026-09-15reviews15rating4.73

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

  • Capture the contents of a tab tabCapture
  • Watch the network requests your browser makes webRequest
  • Run its own code on the pages it can access scripting
Show the remaining 3
  • Act on the current tab, but only after you click it activeTab
  • Run work in a hidden page offscreen
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Yikai publishes 4 listings we track, 14k users between them.

  1. Borderless Window Yikai · Productivity · Workflow · published 2019-09-10 10k users ★ 4.9
  2. M3u8Player Yikai · Productivity · Workflow · published 2019-09-05 3k users ★ 3.0
  3. Video in Theater Mode V2 Yikai · Productivity · Workflow · published 2019-09-08 247 users ★ 4.0

Like this one

Listings the catalog judges closest in what they say they do.

  1. YTWebFullscreen Describes nearly the same job, smaller audience 5 users
  2. YouTube Window Fill Describes nearly the same job, smaller audience 7 users
  3. Better Youtube Theater Describes nearly the same job, smaller audience 17 users
  4. YouTube Tab-Fullscreen Describes nearly the same job, smaller audience 67 users
  5. YouTube FullWindow Describes nearly the same job, smaller audience 25 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.