
Originally Posted by
http://www.zimbio.com/Firefox+Extensions/articles/rVfBbPy7YSZ/How+Remove+Java+Deployment+Toolkit+Firefox
The Java Deployment Toolkit files are located in C:\Program Files (x86)\Mozilla Firefox\plugins\npdeployJava1.dll and C:\Program Files (x86)\Java\jre6\bin\new_plugin\npdeploytk.dll. Users of 32-bit editions of Windows need to remove the (x86) part of the url so that they end up with C:\Program Files\Mozilla Firefox\plugins\npdeployJava1.dll and C:\Program Files\Java\jre6\bin\new_plugin\npdeploytk.dll.
It is now time to close the Firefox web browser and open the plugin locations in Windows Explorer. The plugins can simply be deleted in their folders which will also remove them from running as plugins in the Firefox web browser. Cautious users might want to back up the files first before they remove or delete them from the directories.