Very Useful Rated 5 out of 5 stars

I do a lot of computer created signatures and avatar creations and this is exactly what I needed. Thanks to Jared for taking the time to contact me on how this add-on works. Thank you!

This review is for a previous version of the add-on (initial.rev24.1.1-signed.1-signed). 

When this add-on is installed, you'll notice it working when you view images that are transparent. Normally Firefox will place a white background behind transparent images, but this add-on removes that background. You can test it out by viewing this image,