IE Tab

IE Tab - an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox.
This is a great tool for web developers, since you can easily see how your webpage displayed in IE with just one click and then switch back to Firefox.
If you need some instructions.
Please visit the official website on http://ietab.mozdev.org

Firstly visit and download Firefox 1.5
Download IE Tap more detail Here
Recommend download Tabbrowser Preferences more detail Here
please allow popup from this page,Have enjoy :D!