As a loyal Firefox user, I was disappointed when I found that there was no support for use in Firefox. After doing some searching, I discovered it was, actually, possible to run the KACE client through Firefox as well as Chrome with the use of a simple plugin called "IETab"

For Chrome: https://chrome.google.com/webstore/detail/hehijbfgiekmjfkfjpbkbammjbdenadd

For Firefox: https://addons.mozilla.org/en-us/firefox/addon/ie-tab-2-ff-36/

Using this addon, you can open any IE-dependant web page with Firefox and  Chrome. The benefit of this is being able to use the plugins you use with these browsers - for example, I have my browser set up with a an addon that allows a triple frame in a single window, allowing me to open the Computer Inventory, Scripting, and Help Desk pages of the KACE client all at once - instead of opening them individually and waiting for our, occasionally slow, network to load the pages one by one.

A very small fix to allow more diverse and creative control over your workstation.