I don't want to load the images when i visit some website .Are there any plug-in of firefox can do it?
Adblock plus will allow you to do this.
Right click on an image on the site.
Click Adblock Plus: Block image...
A dialog will appear, "Look for Pattern"
Select the one matching http://www.domain.com/*
In Firefox, goto Tools > Options > Load Images Automatically -> Exceptions
Add site and say Block and Close
You can use a greasemonkey script to do this.
This question might be close to this one in SO : https://stackoverflow.com/questions/387260/removing-images-with-greasemonkey
Nuke Anything Enhanced can also do this on a one time basis if you do not want to blacklist something forever or have to worry about managing a list of blocked content.