Screengrab! saves entire webpages as images.It will capture what you can see in the window, the entire page, just a selection, a particular frame... basically it saves webpages as images -- either to a file, or to the clipboard.
It can capture any Java or Flash embedded in a page, but to do this it requires Java to be installed in the browser.
The following little keywords are at the request of those who can't remember the name ScreenGrab! and want searches to work. It takes screen shots, screenshots -- that is, shots, of web pages.
Install Screengrab addon in firefox
First you need to download and install screengrab from here
After restarting Firefox, ScreenGrab is now ready to go. Navigate to the website that you want to take a screenshot of. Once it has completely loaded, right-click anywhere on the page. A menu will pop up, and at the very bottom, you should see “ScreenGrab” as the last option. You have a few different ways to take a screenshot with ScreenGrab:
To grab a screenshot of the entire webpage, choose “ScreenGrab” > “Save” > “Complete Page/Frame” A “Save Menu” will pop up to save the screenshot. You can rename your screenshot and change the location to save it. You can also change the format from PNG to JPG using the drop-down menu.