Can't set userContent.css for Firefox

[Colin Paul Adams]

I have created a userContent.css in
~/.mozilla/firefox/<garbage>.default/chrome/userContent.css

that looks like this:

body
{
    backgroundColor: yellow;
}


and restarted firefox (3.5.12 - FC12) but it does nothing.

What am i doing wrong?
-- 
Colin Adams
Preston Lancashire
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