STEP 1
Visit https://addons.mozilla.org to download the IE NetRenderer Firefox Extension.
STEP 2
In the search box search for IE NetRenderer and click on the green button to search.
STEP 3
Now the search results should display IE NetRenderer, if it does click on the green Add to Firefox button to install the Extension.
STEP 4
Now click on Install Now
STEP 5
IE NetRenderer will now be installed. After installation click on Restart Firefox so that you may use the IE NetRenderer Extension and that the installation may be completed.
STEP 6
Right click on the web site you are currently viewing and hover over Render in… and a new menu will appear. Now click on the Internet Explorer version in which you would like to render the web page. A new window will appear with a screenshot of how the page will look in the selected Internet Explorer