Summarize the following:
" You can find this option at the top of the toolbar. " It's the option at the very bottom of the drop-down menu. It's the option on the far right at the top of the menu. It looks like a gear. " " This is the button on the bottom right of the screen. This will check to see if Firefox is your default browser. " If Firefox is not your default browser, you will be asked if you want to change your default browser to Firefox. " After this step, you're all done.

Summary:
Open your Firefox browser. Select "Tools. Select "Options. Select the Advanced tab. Check the box next to "Always check to see if Firefox is the default browser on startup. Select "Check Now. Select "Yes. Click "OK.