How To Remove Plugins From Firefox
Plugins can be disabled in the Plugins manager, but not uninstalled or removed completely from the web browser.
Entering "about:plugins" in the Firefox address bar will display additional information about each installed plugin.
Users who visit the screen for the first time may want to type in "about:config" first, to change "plugin.expose_full_path" to true.
This displays the full path to the plugin in the "about:plugins" dialog.
