Use updated version of firefox

Solution 1:

If you want to install the latest version of Firefox, you can perform the following in a terminal:

First use the update command to update your system's package information:

sudo apt-get update

Then use the install command to update Firefox to the latest version:

sudo apt-get install firefox

You could also use the upgrade command (sudo apt-get upgrade), but only if you want to update all currently installed software packages.