Replaces the useless default Firefox image viewer. This plugin is lightweight, adding the core image viewing features you need without the extra bloat most other viewers add.

UPDATED: Developer responded, and added the feature! This plugin is now ideal for my purposes.



Removed section of original review, for posterity:

The only reason I cannot give 5 stars currently, is because the plugin doesn't have an options menu to adjust the plugin's default behaviors.

Personally, I would desire the following:
- Images load at their original size if smaller than the viewing space. Images larger than the viewing space are reduced to fit the viewing space.
- Checkerboard disabled by default.
- Ability to change the background color.