Very Cool and Useful Rated 5 out of 5 stars
This is a very handy add-on that of course automatically zoom images on Facebook pages when you hover over them, but it enhances the Fb experience by allowing you to continue to view Fb alerts, chats, etc, without anything being blocked out by the photo lightbox that usually takes over your screen when you click on a photo.
About this review below mine.
"ADDS TOOLBAR BUTTON W/O Asking.....Run away Rated 1 out of 5 stars"
Although I haven't seen a button just yet, add-on developers are advised to add coding that automatically adds a toolbar button to the navigation bar when an add-on includes a toolbar button so that users don't have to go digging around for them and so that they can take advantage of an add-on's full functionality. If they do not include this coding, they will be advised to add it when their add-on is reviewed to be included on this site. I know this because I've experienced it. Thanks sincerely for developing this free add-on.