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I am trying to set the value for keyword.url in the about:config page of mozilla firefox as

But it is getting overidden quickly by the anti-virus that is installed on the machine to

Can anyone help me out here, to setup the default search engine in firefox to google ?

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Uninstall AVG, or disable AVG's SafeSearch feature

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I was looking for options in AVG settings. The problem was, it has installed a addon in firefox, disabling which resolved the issue. Anyways thanks :) – mtk Jun 22 '12 at 21:16
@mtk If you found a solution, you can provide a new answer yourself. This will be helpful to other users with the same issue. :) – iglvzx Jun 23 '12 at 4:11
up vote 0 down vote accepted

Disable the AVG Firefox add-on. The default search engine would no more get over-written.

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