Every Firestorm user at one point or another has been asked or instructed to do a clean install and sent to our wiki page here http://wiki.phoenixviewer.com/fs_clean_reinstall . It looks so daunting but it's actually pretty easy. In this video you will learn the Jessica Lyon way.
1. Make sure your chat logs are in a safe location and backup your settings.
2. Open your settings and cache folders from within Firestorm.
3. Delete EVERYTHING
4. Re/install the viewer and restore settings
Live long and prosper!