The following are step-by-step instructions on determining that you have the latest version of Mozilla Firefox for Mac OS X.
To view these instructions in video form click here
1. Open Mozilla Firefox.

2. Select "Firefox" from the menu bar.
![]()
3. Select "About Mozilla Firefox" from the drop down menu.

4. You will find the version of Mozilla Firefox you are currently using on this line.

5. Select "Close".
![]()
6. Select "Firefox" from the menu bar.
![]()
7. Select "Preferences..." from the drop down menu.

8. Select the "Advanced" icon.

9. Select the "Update" tab.
![]()
10. Verify that the box labeled "Firefox" is checked.
![]()