YouTube Windowed FullScreen Firefox

YouTube Windowed FullScreen

Watch videos on YouTube fullscreen within your browsers screen.

Features & Capabilities

YouTube Windowed FullScreen is a lightweight Chrome extension that enables you to watch YouTube videos in fullscreen mode within your browser window, perfect for users with dual monitors or those who want to multitask without losing sight of their video. It adds a handy icon and configurable hotkey to toggle the video player to a full browser page view, maximizing screen real estate while allowing you to continue working on other tasks.

The extension offers both free and premium features. Free features include the fullscreen toggle button, configurable hotkeys, persistent search bar visibility, and video title display during fullscreen mode. Premium features, available via a one-time $12 AUD payment for lifetime access, include auto-toggle windowed fullscreen, scrolling while in fullscreen, a mini-player during scrolling, and a picture-in-picture shortcut. Recent updates have enhanced user experience by adding non-intrusive notifications on updates, scrollbar hiding options, and customization to improve thumbnail interaction. Configure the extension easily through the icon or browser settings.

User Growth & Download Statistics

Manifest V2 Add-on
By:
navi.jador
Daily users:
4,123 -32
Rating:
3.61
(77)
Version:
5.0 Last updated: 2025-10-15
Version code:
6054272
Creation date:
2020-07-19
Risk:
Moderate risk impact Moderate risk likelihood
Permissions:
Content scripts matches:
  • www.youtube.com
Size:
311.21KB
Email:
fu*****@gmail.com
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-18
Compare stats and ranking:

Other platforms

Chrome
YouTube Windowed FullScreen (v5.00)
60,000 4.24 (415)

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
navi.jador
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/youtube-window-fullscreen/
Email:
fu*****@gmail.com

Publisher Change History

2025-03-08: na*****@gmail.com to fu*****@gmail.com

Upgrade to see full email

Permission Change History

2025-03-20: Version 4.8 → 4.9
Remove Permissions: notifications
2025-03-19: Version 4.7 → 4.8
Add Permissions: notifications
2025-03-02: Version 4.5 → 4.6
Remove Permissions: identity activeTab tabs
2025-02-18: Version 4.2 → 4.5
Add Permissions: identity activeTab tabs

User Reviews

Users report that the extension helps ultrawide YouTube viewing by filling more screen space and is a long-standing tool, with some noting smoother operation after the premium update. However, the shift to a paid model and paywall, compatibility issues with YouTube updates, privacy concerns, and workarounds to bypass payments dominate the discussion.
Pros
  • Fills more of the screen on ultrawide monitors, eliminating unused space when watching YouTube in windowed fullscreen.
  • Longstanding, years-long usage; trusted by users and considered a solid tool for widescreen viewing.
  • Smoother performance and additional features after the premium update, with support for ongoing development.
Cons
  • Freemium/paid model; many reviews call it scummy and say it locks features behind a paywall.
  • Incompatibility with the latest YouTube player; no longer works after updates.
  • Privacy concerns about tab data access and permission creep.
  • Downgrading to older versions to bypass the payment indicates dissatisfaction with pricing.
Recent reviews
by Fi*****, 2026-05-28

Was able to use once and now it want me to sign up/pay.
by De*****, 2026-05-25

Charging for a browser extension is scummy
by Si*****, 2026-02-25
View all user reviews ›

Is YouTube Windowed FullScreen Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

YouTube Windowed FullScreen requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: youtube.com
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

YouTube Windowed FullScreen is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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Best YouTube Windowed FullScreen Alternatives

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