Below are the extension for Chrome and Firefox. Clicking the title will directly take you to the download page from where you can download it.
2.) Webpage Screenshot:
Fast&Simple extension to capture the whole webpage. Even long pages are saved in one image file.
This extension lets you save PNG/JPG image of any webpage.
Just one click.
3.) Light Screenshot:
1. The only plugin that takes screenshots of video, flash and java apps.
2. Save all you screenshots in PNG or upload them and get a short link.
3. Search similar images on Tineye and Google!
Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!
Easy and convenient screenshot tool. Allows you to make screenshots of any selected area (video and flash too), edit and upload it to server.
Really full screen with slideshow support...