YouTube Dynamic Web Fullscreen by DYNAMIC BLINK
Resize YouTube video to fill browser window while preserving aspect ratio.
Extension Metadata
About this extension
Maximize your viewing experience on YouTube with a single click.
YouTube Dynamic Web Fullscreen allows you to force the video player to fill the entire browser window without entering the traditional full-screen mode. This is perfect for multitasking with "picture-in-picture" style viewing or maximizing screen real estate on ultra-wide monitors.
Key Features:
* True Window Fill: The video resizes to fit your browser window exactly (100% width and height).
* Aspect Ratio Safe: Automatically adds black bars (letterboxing) so the video never stretches or distorts.
* Distraction Free: Instantly hides the comments, sidebar, title, and top gradient for a clean, cinema-like view.
* Smart "Always-On-Top": Uses advanced layering to ensure the video stays above all other YouTube elements.
* Zero Data Collection: This extension runs locally and collects absolutely no user data.
How to use:
1. Open any YouTube video.
2. Click the extension icon.
3. The video will expand to fill the window.
4. Click again to return to normal view.
YouTube Dynamic Web Fullscreen allows you to force the video player to fill the entire browser window without entering the traditional full-screen mode. This is perfect for multitasking with "picture-in-picture" style viewing or maximizing screen real estate on ultra-wide monitors.
Key Features:
* True Window Fill: The video resizes to fit your browser window exactly (100% width and height).
* Aspect Ratio Safe: Automatically adds black bars (letterboxing) so the video never stretches or distorts.
* Distraction Free: Instantly hides the comments, sidebar, title, and top gradient for a clean, cinema-like view.
* Smart "Always-On-Top": Uses advanced layering to ensure the video stays above all other YouTube elements.
* Zero Data Collection: This extension runs locally and collects absolutely no user data.
How to use:
1. Open any YouTube video.
2. Click the extension icon.
3. The video will expand to fill the window.
4. Click again to return to normal view.
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Permissions and data
Optional permissions:
- Access your data for sites in the youtube.com domain
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Version
- 1.6
- Size
- 9.53 KB
- Last updated
- 13 days ago (Jan 18, 2026)
- Related Categories
- License
- Mozilla Public License 2.0
- Version History
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