Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to change the default font in firefox [title] Open mozilla firefox. [step] Double-click the shortcut icon on your desktop to launch the browser. [title] Click on the " menu " button.

Ending1: [step] The menu button is the person-shaped icon that appears on the upper-left corner of the menu bar. [title] Click on " add creator " in the ribbon menu. Ending2: [step] It looks like a magnifying glass and can be found at the bottom of the browser window. [title] Click " system preferences " located in the drop-down menu. Ending3: [step] The menu button is located in the upper left corner of your mozilla firefox window. Clicking it will bring up a drop-down menu with all of the applications you have installed and whom you wish to remove. Ending4: [step] The menu button is on the upper-right corner of the screen. [substeps] For older versions of firefox, click on tools on the menu toolbar on the upper part of the window.

Answer format: ending1/ending2/ending3/ending4