The GoogleGIFs Extension Lets You Animate GIF Files When Searching for Google Images
Chrome: Google Image Search is a great way to find the GIF you want when you need it, but the results don’t actually animate unless you select each GIF at once. GoogleGIFs Chrome extensions fix this.
The extension automatically downloads all GIFs to Google image search results pages. This can help you determine which images are animated, or preview what a GIF looks like without any additional effort.
GoogleGIFs | Chrome Web Store via TechCrunch