IE Tab is a simple but can be a powerful add-on for Firefox browser. Basically, it allows you to open a Website or a URL who can under a new tab but as if it is opened in Internet Explorer. Well you may question why on earth someone has to do that??
Well. If you have a website designed to work well on Internet Explorer and trust me there are websites of that kind or if you are a developer who wants to check how it looks and works in Internet Explorer then this can do.