Some of them are really useful for web designers.. And some of them may be more fun tools..

Here is 14 Firefox add-ons for Images.

1. PicLens | Immersive Slideshows Across the Web

PicLens instantly transforms your browser into a full-screen, 3D experience for viewing images on the web.

2. Picnik

Add a menu options and a toolbar icon to make importing images into Picnik easier.

3. Gspace

Gspace turns the 2GB of your Gmail account into free online storage.

4. BatchDownload

Download all the images in current page fast and easy!

5. Screengrab!

It will save what you can see in the window, the entire page, just a selection, a particular frame.

6. Pearl Crescent Page Saver

Pearl Crescent Page Saver is an extension for Mozilla Firefox that lets you capture images of web pages.

7. Backgroundimage Saver

A quite simple extension that allow you save and view backgroud image.

8. Image Toolbar

Single-click access to common actions for images (e.g. saving, copying, printing).

9. Save Image in Folder

Easily save images in personally customized folders.

10. PictureThis

A word is worth a thousand images as you will see when you highlight a word or words on a page then use PictureThis to see what Google Images sees.

11. FxIF

View EXIF data in image properties. Just right click an image and select “Properties” to view EXIF data if available for that image.

12.AutoSlideshow – Slideshow Extension for Firefox

AutoSlideshow is a free extension for the Firefox internet browser.

13. Image Zoom

Easily zoom in, zoom out, fit image to screen or set custom zoom on individual images within a web page.

14. Google Images Re-Linker

This will let you click the thumbnail images on images.google.com, skip the referred framed page, and jump straight to the full-size image.