Rated 5 out of 5 stars
FxIF is one of the best EXIF displaying add-ons that there is. I have come to rely on this addon due to the simple fact of me being a photo nerd. I love delving deep into the EXIF data of photos just to see what settings and equipment people are using for their photographs.
The convenience of FxIF is exceptional. I don't have to download any images to get the info. Just right click on an image and "view FxiF" and the dialog will pop up with all of the attached EXIF data.
If you're looking to view EXIF data around the web, this is definitely the add-on to go for. It's much more aesthetically pleasing than some of the other options out there. Give it a try!