Multi-choice problem: Continue writing the next sentence in this paragraph:

How to change your security settings on firefox 
Launch firefox. 
To open the firefox browser on your computer, click on its icon, which should be on your desktop, start menu, or taskbar. 
Click on the settings button.

Available options:
1). Look for the icon with three short horizontal lines arranged one on top of the other found at the top-right corner of the browser. Click on the icon to display a drop-down menu..;
2). Depending on which version of firefox you have, scroll down and click on " specific settings. " the settings menu should be located on the upper portion of the page, and is tilted slightly to the left to display a list of settings.;
3). This icon is at the upper right-hand corner of the page, across from a gray gear icon containing gears. Clicking on it will take you to a page that lists all your current firefox settings.;
4). In the menu on your firefox, click on " settings " located towards the upper right corner of your browser, and click on " settings. " you will see a list of settings you can change.;
1).