With the newer versions of firebug, one must load the console manually in JS code:

if (loadFirebugConsole) { loadFirebugConsole(); }

This is usually done at the top of any JS code (after including libraries) so that you can use the console later in the page/app. This line is causing problems with all animations if Firebug is not installed or disabled on the client browser.

I haven't been able to dig into the code yet to see what's going on, but I might try later this week when I have more time.

TO REPRODUCE:

-Make sure Firebug is installed and active

-Go to: http://jkdesign.org/color in Firefox

-The first page will work fine, then click on "broken anim"

-Only difference is the commented out loadFirebugConsole line

Reproduced on:

Firefox 2 AND 3

Firebug 1.3

jQuery 1.2.6 AND 1.3.1

Windows AND Mac