Bad Package Error here when I try to install it.

Yup, I'm also getting a bad package error downloading the extension. But I love the idea - can't wait to try it out, guys - cheers!

The YDN "download now" fails for me same as other commenters but it installs correctly from the addons.mozilla.org "install now" button:

https://addons.mozilla.org/en-US/firefox/addon/5369

The download URL changed when it was made public. Fixed now. Enjoy!

This is a really great little tool. In a mater of an hour, I applied these theories to a project I am working on and came away with a much better performing application. I have to admit though, the fact that I'm not using a CDN and therefore score an F makes me sad... but I'm just not going to invest in that yet :)

~Jim

Could we have a way of removing the "YSlow" status bar item?

I'm getting an error saying "Not compatible with Firefox 2.0.0.5" in the Add-ons panel, and nothing shows up in Firebug. Is this a known issue or something I'm doing wrong?

This is great work guys...gonna put these guidelines into practice and see how much better our app can be.

Keep up the great work!

C

We're getting great feedback on YSlow and building a list of fixes that will come out next week. A lot of people have commented about Rule 2 - Use a CDN. Make sure to read the FAQ link that's provided that describes how to add your own CDN to the YSlow preferences. That way you can get a realistic grade. We'll add a "turn off Rule 2" option next week. And an option to hide the statusbar info. Feel free to use the Feedback form to send in more suggestions.

It chokes on images with "data:" as the src handler (src="data:hex-characters-here"), it breaks firebug.
For more reading on data urls see RFC2397
http://www.ietf.org/rfc/rfc2397.txt

hallo,

I am trying to get a green light on the CDN test.
To do so, I created a subdomain and updated my about:config to add it to my extensions.yslow.cdnHostnames.
Then I ran a check to get the list of components that are not on CDN and check if YSlow reckognized my config change: it did.
Finally I changed the site header to load the css from the CDN subdomain.

Now the problem is that YSlow still report about the CDN problem even for files that are coming from the CDN itself.

Am I missing some info?
Thank you for your help!