How do I get Firebug to do this:
(from the Firebug website http://getfirebug.com/using.html) You can browse in two modes – either enable Firebug for all websites except those on the ‘blacklist’, or disable Firebug for all websites except those on the ‘whitelist’.
How do I get the second option? I don’t want Firebug running for every site I visit, just those I’m working on.
Choose ‘Disabled’ from the Console dropdown (this disables all by default), then click the ‘Sites’ item from the same dropdown. A dialog will pop up where you can select which sites to enable Firebug (the whitelist).