Perform a Google Image Search on any picture on Pinterest.
This extension levages the power of Google Search by Image to give you a wealth of information about any picture you find on Pinterest. Find similar pictures. Find all the websites where the picture appears. Find out about the designer, author, chef, photographer who created the picture. The Google search results may surprise you. Get ready for a whole new level of discovery.
This extensive adds a 'Search' button that only appears when you hover over a picture.
Via Paulo Simões