If you have Firefox installed on your machine, you're using it every day and you probably would also like to use it to manage your Altiris environment. OK... i will show you quickly how to do it.
Go to: Firefox > Tools > Add-ons – click here 'Get Extensions' hyperlink [right bottom corner].
On the website (it's an official Mozilla website [addons.mozilla.org]) search for: 'IE Tab'. Simply click and install, restart your Firefox and set it up to be visible so you will be able to switch when you want to use either the Firefox engine or the IE engine.
For the IE engine it is good to add straightaway your NS Console's URLs after installing IE Tab so it will always run the IE engine when accessing these resources. Enjoy!
I didn't notice any problems and it significantly sped up my work (as Firefox is is speeding up Web browsing across the world).