The addon installs a small ‘Launch PicLens’ button on the toolbar, when browsing pictures on supported sites the button gets highlighted. Clicking the button will open up a fullscreen window allowing to browse and search for pictures as seen below.
Currently PicLens supports searching pictures from Google, Amazon, YouTube, Flickr, Yahoo, deviantART, Photobucket, and smugmug. With YouTube you can watch and browse through videos too without the need to open a separate tab or window.
A new feature allows users to share photos with friends by email just by drag-n-drop.
The addon also supports browsing pictures from social networking sites such as Facebook‘s picture album. But the addon does not support browsing pictures in Orkut yet.
The latest PicLens version is 1.8.0 and can be downloaded from here. The addon is availabe for both windows and Mac users, with support for Internet Explorer too.