Firefox Add-on for Flickr

Did you know that there is an Add-on that you can use with Firefox to access sites such as Flickr in countries where it has been blocked? Here is a link to the Firefox Add-on that you can download and install on your computer. It is free and very simple to install, requiring no registration, or anything at all. I came across it last week just by chance, but it seems to be quite a popular download.