How to install Greasemonkey

Grease Monkey is a extension (add on) of Mozilla Firefox.
It enables user to run any javascript while loading different pages.
To download Grease monkey follow the link and click on "Add to firefox"

a popup window will open asking for permission. click on install

Then restart firefox.now you can see a icon of greeasemonkey in the right hand bottom offirefox.

click on it to disble or enable.
It will not load any javascript while in disable mode.