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YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.
This add-on requires the following add-ons to work properly:
This add-on is not compatible with your version of Firefox because of the following:2,013,551 users
About this Add-on
Visit the official YSlow website: http://yslow.org
YSlow is licensed under the New BSD License, with portions licensed by third parties under other license terms. To review the terms before installing, see http://wh.yslow.org/yslow-license
You must install Firebug: https://addons.mozilla.org/en-US/firefox/addon/1843