Getting Internet Explorer functionality in FireFox

Say you are a fan of using Firefox as your browser, and really do not prefer to use Internet Explorer for your browsing purposes. Now you come across a site or a plugin that works only in Internet Explorer. What are your options: You can not go to this site, or you can launch Internet Explorer if the site is important to you.
There is actually another option that is available to you. There is a concept supported in Firefox about launching an Internet Explorer tab within Firefox, so you can actually continue using Firefox, just elect to use the Internet Explorer tab for this purpose.
Not making sense still, well the easier way is to explore for yourself. You can actually install a Firefox add-on that gives you an Internet Explorer tab. Instalt the add-on, restart Firefox and then the right-click options on a URL will have additional options for launching an Internet Explorer tab. The add-on is available here:
https://addons.mozilla.org/firefox/1419/