These are the most used extensions for photos that I found until now in the chrome web store. I hope I didn't miss other used ones, but if I did... just leave me a comment on the original post: http://goo.gl/qb4rx . Please share this to help g+ photography lovers. Remember this is just a reference, I didn't try all of them, but I surely love the 3rd one, Cooliris!

1. FB Photo Zoom (1,000,000+ users) - http://goo.gl/aqd3G
FB Photo Zoom is a simple, light-weight extension that integrates directly into Facebook so you can see the larger images of photo albums, profile photos and more whenever you hover over a zoomable image!

2. Slideshow (230,643 users) - http://goo.gl/pAs9Q
Turn your favorite photo sites, such as Flickr, Picasa, Facebook, and Google Images into a slideshow.

3. Cooliris (226,445 users) - http://goo.gl/8W4vc
Cooliris transforms your browser into a full-screen 3D Wall for searching, viewing and sharing the Web.

4. Hover Zoom (202,140 users) - http://goo.gl/UW4x1
Enlarge thumbnails on mouse over. Works on many sites (Google Plus, Facebook, Twitter, Google, Flickr, Reddit, Amazon, etc).

5. Search by Image (by Google) (164,028 users) - http://goo.gl/shZFL
This extension allows you to initiate a Google search using any image on the web. By the Google Images team. To use it, after you install it, you either right click on an image and after that you click "search Google with this image", either you go to the extention's option and select Show "" when hovering over an image (it will show you a little camera)

6. We Heart It (117,022 users) - http://goo.gl/IR181
Send images from any website to your heart page on We Heart It.

7. Picnik (105,501 users) - http://goo.gl/LhG0D
Lets you easily edit the images you come across while browsing the web. With a click you can create a snapshot of your current web page and open it in Picnik for easy editing, annotation and sharing. Do the same for all the images on your current browser page -- just pick one from the image list that pops up and then edit, embellish, then share with Picnik.

8. Picasa Extension (by Google) (68,293 users) - http://goo.gl/dqrNm
Picasa photos and comments in Chrome. It gives you quick access to Picasa Web Albums features via a browser button.

9. +Photo Zoom (61,721 users) - http://goo.gl/lcYFA
Easily zoom photos and profile pics from your Google Plus Stream. Fast and simple zooming for photos within your Google+ Stream. Just hover over the image you wish to zoom and +Photo Zoom will load the enlarged version of the picture.

10. Picasa Uploader (43,154 users) - http://goo.gl/OfzKL
Upload photos to Picasa Web Albums. Uploads photos and video from Chromebooks to Picasa. For Chromebook devices only. Not for use with desktop Chrome for Windows, Mac, or Linux.

11. Cloud Save (40,115 users) - http://goo.gl/ir9hC
Save files to the cloud. Supports Google Docs, Box.net, Dropbox, Amazon Cloud Drive, Windows Live SkyDrive, SugarSync, Facebook, Picasa, Flickr, Min.us, Twitpic and more.

12. Pixlr Grabber (29,938 users) - http://goo.gl/lQPY4
Screen capture/image grabbing. Edit, Save or Share screen grabs and images. Create screen capture of visible part, selected area or whole page then you can edit them in pixlr editor or share them to public. You also get a context menu for pulling down images to pixlr editor.

13. Move Your Photos (26,757 users) - http://goo.gl/JpwFg
Move Your Photos (formerly Move2Picasa) helps you to transfer your Facebook albums/photos selectively to Google's Picasa and the you can share them with your Circles.

14. EXIF Viewer (23,029 users) - http://goo.gl/2ZIe8
Allows you to view meta information data contained in JPEG images from the convenience of your Chrome browser. Most digital cameras add EXIF data to all images you take and much editing software adds or allows you to add more informations on the picture and you the creator.

15. Photo Zoom (17,161 users) - http://goo.gl/lxU0v "Photo Zoom is a simple extension of ultra-lightweight, perfect for the photo read function optimization. Sometimes we just want to see a photo of the original, have to click a lot. And now, through Photo Zoom's quickly browsing function, no longer so much trouble, you can see each photo in full size without more click!"

16. Fittr Flickr (14,826 users) - http://goo.gl/qVkpx
Extension for enhancing the awesome photo sharing site, Flickr. Adds keyboard shortcuts, tag autocomplete, quick access to EXIF data, easily copy Flic.kr short URL to the clipboard, and a page action that allows you to easily get from a Flickr image URL back to it's photo page.

17. Minus (12,043 users) - http://goo.gl/yliS8
Share and upload photos and screenshots directly from your Google Chrome browser. Minus will simplify the way you share online. Manage your files with your free Minus account anywhere you go. Upload, edit and share photos, videos and files on Windows, Mac, iPhone/iPod Touch, Android and the Web.

18. Drag2up (6,582 users) - http://goo.gl/ATY4b
Makes file sharing on the web as easy as dragging and dropping the file from your computer onto the form you would like to add the file to. The file is automatically uploaded to a host and inserted into the field.

19. EXIF Reader (6,423 users) - http://goo.gl/hqlGQ
Photo EXIF information analyser. You can extract EXIF, such as Exposure Time, Aperture Value, Focal Length and more. Unlike traditional EXIF Extractor, you do not need to download a photo for view its EXIF information, With EXIF Reader, you can view EXIF information in your Chrome directly.

20. PhotoLive (5,498 users) - http://goo.gl/IbRmv
Zips and saves the Facebook photos and albums you choose with the click of a button.

21. DownloadSupport for Google+ (4,587 users) - http://goo.gl/IqRDo
Download pictures and videos on the stream of Google+. Displays a button for each post.

22. VisualizeUs (4,048 users) - http://goo.gl/uELEx
Official Chrome extension for VisualizeUs (http://vi.sualize.us), the social network for image lovers.

23. Image Search by Cooliris (3,802 users) - http://goo.gl/ASi0x
Search Google Images on the Cooliris 3D Wall -- Fast, Stunning, Powerful.

If you're looking for extensions for Google+, take a look at Top 25 most popular chrome extensions for google plus - http://goo.gl/APJpj

Other useful posts: #gvgpUseful
Extensions For Photos (25 photos)
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