4chan gallery, slideshow, grid, expand images

Improve how you watch images on 4chan. Add a gallery, slideshow, grid mode, and a button to expand all images to 4channel threads.

This extension makes viewing images on 4chan more enjoyable by adding:
- Grid view: Hides all messages and only shows images and videos in a grid
- Gallery mode: Shows images and video full-screen (with keyboard navigation)
- Expand all: Expands all images in the thread

Almost every aspect of this extension can be customized via settings.

Last updated 26-10-2025: add option to lazy load images and videos.