Very useful Firefox add-on - IE Tab
https://addons.mozilla.org/en-US/firefox/addon/1419
This add-on embeds IE in tabs in Firefox. A Firefox icon will be installed in the lower right corner of the browser, click it, it changes to the blue e and you are now in Internet Explorer within Firefox.
Also, when you right click a link from your bookmarks (or anywhere) you have an option to open the link in an IE tab.
You may find this a must have addon, I do. Hit a page that won't load properly, click the icon, poof, it's perfect.