GreaseMonkey User Scripts by Pete Freitag
Amazon Localaization user scripts.
Use Amazon Localization User Scripts to convert links from amazon.foreign_country to amazon.your_country
MXNA User Scripts
MXNA - URL Hover user script makes the blog entry url showup in the anchor title.
Installing User Scripts
Step 1 - Install GreaseMonkey
GreaseMonkey is an extension for the FireFox browser, Install it. You will need to restart FireFox after installing the plugin.