Set Firefox as Default Browser
Posted on Nov 30, 2007 under Firefox Tips |How to set Firefox 2 as the default web browser in Windows.
1. In Firefox, click Tools > Options.
2. Under Main, there is an area for Always check to see if Firefox is the default browser on startup. Click the Check Now button.

3. When the prompt appears for Firefox is not currently set as your default browser. Would you like to make it your default, click Yes.
Firefox should then become your default browser.

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