A reader wanted to know the easiest way to insert his email address using Firefox with the fewest number of keystrokes. Turning on Autofill is just the trick he’s looking for.

Start by clicking the three-line menu icon at the top and choose Options from the drop-down menu.

Choose Privacy and Security at the left.

You can allow Firefox to remember your logins, which are often email address. You can also allow the browser to automatically fill in forms. This can save you a lot of time. You should only

You can usually just type a letter or so in a blank form and you’ll see your fill-in-options.