For those of you who recently updated to Firefox 11 and have discovered the changes Mozilla has made with the way standalone images (right-clicking on an image and selecting ‘view image’), here is an add-on that ‘fixes’ this for you. Old Default Image Style restores the Firefox 10 and older style of viewing standalone images. Even better, this add-on does not require a restart, simply install and you are ready to go instantly. Thanks to ringokaori for the tip.