'''Note:''' Turning off the automatic update of Firefox is '''not recommended'''. Only the latest version of Firefox gets regular security updates and will keep you safe and sound on the internet. However, if you really need to turn off the automatic update of Firefox, please follow these steps: In the Firefox window, click the ''Firefox'' button at the top, then select the Options menu item. #If no Firefox button is shown, click the Tools menu at the top of the menu bar, then select ''Options''. #From the Options window, click the ''Advanced'' panel. #In the Advanced panel, click the ''Update'' tab. #Under ''Firefox updates'', select ''Never check for updates''. #Now click the ''OK'' button to apply the changes.