Turns out that uninstalling IconPackager resets all icons (including those for file extensions under Folder Options) and pointers back to defaults.
I went back and changed each icon representing a file type manually (wordpad back to MS Word, etc). Everything could be changed back, except the icons for HTM and HTML files. When I click on either HTM or HTML is says "opens with: Firefox" and in "advanced" I used the "change icon" to bring back the firefox icon. Although it shows up in the preview, the icons representing HTM/HTML files on my computer are still those of Internet Explorer.
Does anyone know how I can change the icons back to those of Firefox?
Thanks in advance.