I have been using this extension since before FF1.5 Rated 5 out of 5 stars
It was, in fact, the first one I started using. I use it exclusively for being able to quickly zoom in/out of an image with the rightclick+mousewheel. Is this going to get updated to officially support FF13 (note I am using it just fine w/ v13), as well as to finally fix the zombie container memory leak? ...posted here:
Thanks for a great, and simple, mod!