OwlZoom for YouTube Videos is an open-source Firefox extension designed for users seeking to zoom in on YouTube videos. This tool allows for a maximum zoom level of 2X, enhancing visibility and providing a more immersive viewing experience. Users can easily activate the zoom feature through the YouTube settings, selecting their preferred zoom level before clicking the OwlZoom button on the video playback bar.

The extension is compatible with all YouTube playback modes, including Normal, Stage, and Full Screen. Users have the flexibility to adjust their zoom area with a visual box, making it easy to focus on specific video sections. To revert to the standard view, users can set the zoom back to 100% or use the keyboard shortcut SHIFT + B. OwlZoom operates independently from Google Inc. and is maintained as a fan project.