Hi Luc,
What you are observing is Selenium instantiating an instance of
Firefox using a basic profile. This is why firebug does not appear
since the profile used does not contain it. In order to resolve the
issue, you need to create a custom profile that contains firebug and
references it when starting up the Lebowski server. As an example, you
would start the server like so:
./lebowski-start-server -firefoxProfileTemplate "/path/to/firefox/
profile"
When running the lebowski server in Mac OS X, the Firefox profiles can
usually be found in the following:
/Users/<username>/Library/Application Support/Firefox/Profiles/
The profiles have names like 9qdkp664.default. To create and manage
Firefox profiles, see the following:
http://support.mozilla.com/en-US/kb/Managing%20profiles
-Mike