Rewrites product URLs to the shorter version using Amazon's ASIN number (which is also used by Endless.com and Target.com)
Before and After of Kindle's url :
Amazon category/node pages are also shorten.
If you think the shorten links are incorrect, go to the addon options and uncheck 'amazonlinks'. Reload the page and to verify the link. If that fixes the error, please contact me at the link above and provide the page url and the link url that lead to the error.