Firefox in a Nutshell

Installation and Updating

This section contains detail on installing Firefox on Window, Ubuntu and Mac. Installing normally starts in the same way by visiting This website automatically detects the version of Mozilla Firefox that works best with your computer.

However If you want to download Firefox for a different language or for a different operating system than the one detected, click "Systems and Languages" under the green download button to see a list of all the options available.  


Download and Install Firefox on Windows

  1. Open your internet browser (such as Microsoft Internet Explorer Google Chrome) and visit:
  2. Click Firefox Free Download and your computer will start receiving the setup file. This should appear in your Downloads folder. Once the download completes, close all of the programs you are using before you install Mozilla Firefox.
  3. Open the file (by double-clicking the file with your mouse) to start the Firefox install wizard.
    • If you get a Security Warning and you should allow the setup to run by clicking Run.
    • If prompted to allow the program to make changes to your computer click Yes.

    A welcome screen appears.

  4. Click Next to continue. The Setup Type screen appears. A "Standard" setup is selected by default (using the custom option is only recommended for experienced users).

  5. Click Next to continue.
  6. Firefox installs itself as your default browser. If you do not want Firefox to be your default browser, clear the check box Use Firefox as my default web browser.
  7. Click Next.
  8. Once Firefox has been installed, click Finish to close the setup wizard.


If the Launch Firefox now check box is checked, Firefox will start after you click Finish. You may then be asked if you want to import Options Bookmarks History Passwords and other data from your previous browser. Check the appropriate box in accordance with your wishes and click Next.

Installing on Mac OS X

  1. To download Firefox for Mac visit and follow the steps above.

  2. When prompted, click OK.
    Once the download is complete this window appears: Dragg.png
  3. Click and hold the icon, then drag it on top of the Applications icon. When it is on top of the Applications icon, release the mouse button. This starts copying the program files to the Applications directory on your computer.
  4. Eject the Firefox disk image. If this does not work by normal means, select the disk image icon and then, in the Finder menu, select File > Eject Firefox.
  5. Now, open the Applications directory and drag the Firefox icon to the dock:


  6. Click either icon (in the Dock or the Applications folder) to start Firefox. The Import Wizard dialog box appears:

  7. To import your bookmarks, passwords and other data from Safari, Click Continue.
  8. Click Continue. Now you see the Welcome to Firefox page.

Congratulations, you are now ready to use Firefox!

Installing Firefox on Ubuntu

Firefox is already installed on Ubuntu as part of the normal installation. Accessing it is easy. If you are using an installation of Ubuntu with no changes to the default Desktop you should see the Firefox logo towards the top left of your screen.

Click on the log and Firefox starts and a welcome window opens:


Updating Firefox

Recent versions of Firefox automatically update themselves. Updates are downloaded in the background and installed when you restart Firefox.