YSlow 2.1.0 Now Compatible with Firefox 4 Released

YSlow 2.1.0 is now available. For first timers, "YSlow is a Firefox add-on integrated with the Firebug web development tool. It analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages."There're major bug fixes in this release, as well as making YSlow compatible with […]

YSlow 2.1.0 is now available. For first timers, "YSlow is a Firefox add-on integrated with the Firebug web development tool. It analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages."

There're major bug fixes in this release, as well as making YSlow compatible with Firefox 4.

Summary of bugs fixed:

Download: YSlow

[Source]