How To Change Default Browser To Mozilla

In order to change your default web browser to Mozilla Firefox simply follow these steps:


Step 1: Open Your Firefox browser select tools and select options.

Step 2: A new window opens select advanced tab at the bottom you find system defaults select "Always check to see if Firefox is the default browser on start up" check-box.


That's all Your work is done.
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Change default operating system at boot

To change which operating system starts by default when the computer starts up, edit the grub configuration file.

1. Make a backup of the configuration file, and open it in a text editor:
   

   sudo cp /boot/grub/menu.lst /boot/grub/menu.lst_backup
   sudo gedit /boot/grub/menu.lst

2. Find this line:
   

   ...
   default 0
   ...

3. Replace with the following line:
   

   default X

   	You should replace X with a number, according to the order which your operating systems appear in the configuration file. You should start counting from 0. For example, if you wish the default operating system to be the first in the list, replace X with 0, if you wish the default operating system to be the second in the list, replace X with 1, and so on.

4. Save the edited file (an example)