[Plugin: WordPress Font Uploader] fonts don't change in explorer

I used this plugin, and I see results on Google Chrome, and on my Kindle (for heavens sake!),but not in explorer, which is usually what I use. Is it not compatible, or am I doing something wrong? (VERY well could be- I’m an absolute newbie with this stuff!)
Heartfelt gratitude for any help with this…

E.W.

http://wordpress.org/extend/plugins/font-uploader/