IE Tab, an extension from Taiwan, features embedding Internet Explorer in tabs of Mozilla/Firefox.
This extension is derived from the famous extension IE View, but they are quite different.
While IE View always open IE-only pages in newly launched windows of Internet Explorer, IE Tab can open them in tabs of Mozilla/Firefox.
This feature is very similar to the one provided by Netscape 8's "npTrident" plugin, which enables it to render certain webpages with the Trident engine.
UserAgent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en) AppleWebKit/420+ (KHTML, like Gecko) Safari/417.1




