Wideframe Video Crop by Rakshan Bhandary

Make videos fit your screen with Wideframe Video Crop, a Firefox extension designed for YouTube and compatible HTML5 video players. Adjust the picture directly over the video, especially when watching on an ultrawide monitor.

Features
- Click the on-video button to cycle through Auto, Fill, Fit, Stretch, and Reset.
- Automatically detect and crop black bars when the video allows frame analysis.
- Adjust horizontal and vertical zoom with plus/minus buttons or type a value from 1.00× to 3.00×.
- Keep X and Y zoom locked together, or unlock them to stretch each direction independently.
- Drag the control button to a convenient position. Its position is remembered per website.
- Open the menu on hover, or enable right-click-only mode.
- Controls fade when not in use.
- Use fullscreen, adjust picture position, trim edges manually, and optionally remember crop settings per website.

Privacy
Everything runs locally in your browser. No analytics, tracking, or video uploads. Settings are stored locally.
Compatibility
Support varies between websites and players. Some sites block automatic black-bar detection; manual zoom and edge trimming remain available. Filling the screen may crop picture edges, while Stretch changes the picture’s proportions.

A note from the developer
I built this extension with help from AI to solve a personal need. If you find a bug or have a suggestion, please let me know. I’ll try to help when I can, but I can’t promise fixes or ongoing support.
Thanks for trying Wideframe!