Firefox Portable 2.0: Anti-Phishing

Hi!

Today used Firefox 2.0 (for testing purposes)

I also looked around in the settings menu. There was one thing that i didn't understand:
It seems like you can't activate the anti-phishing-function.
If you look on the screenshot you can see that the option is just colored grey. (The second from top)

Do you have an idea why the option isn't available?

Greetings,
Leon B

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EDIT

Problem Solved!

After a little bit of research i found out, that the anti-phishing-function had been removed in Firefox 2.0.0.19 and later 2.0-versions because the Google-service wasn't available anymore.
(Source: http://de.wikipedia.org/wiki/Versionsgeschichte_von_Mozilla_Firefox)