The Mozilla Firefox logo.

Keeping your browser updated is essential for internet security. Mozilla regularly updates Firefox to cover any emerging threats. Updates are free, so here’s how you can install them and stay safe.

Manually Update on Windows

If you want to see if there’s an update for Firefox on your Windows computer, just open Firefox. Click the hamburger icon (the three horizontal lines) in the top-right corner.

Click hamburger icon in Firefox.

Click “Help” near the bottom of the list.

Click "Help."

In the Help menu, click “About Firefox.”

Click "About Firefox."

The “About Mozilla Firefox” window appears. It provides information about the current version of Firefox your computer is running. If you have the latest version, you’ll see “Firefox Is Up to Date” in this window.

If not, you’ll see a “Check for Updates” button. If an update has already loaded in the background, you’ll see a “Restart to Update Firefox” button.

Click either of these to allow Firefox to load or install the latest update.

Click "Restart to Update Firefox."

After Firefox restarts, click Help > About Firefox again to make sure you now have the latest version.

Manually Update on a Mac

If you want to update Firefox on a Mac, open the browser. Click “Firefox” in the menu bar at the top of the screen, and then select “About Firefox.”

Click "Firefox," and then select "About Firefox."

A window will appear with information about the current version of Firefox you’re Mac is running. If the browser is up to date, you’ll see “Firefox Is Up to Date” in this window.

If not, you’ll see a “Check for Updates” button. If an update has loaded in the background, you’ll see a “Restart to Update Firefox” button.

Click either button to allow Firefox to load an update or restart.

The "About Firefox" window on a Mac.

After Firefox restarts, click Firefox > About Firefox again to double-check that you have the latest version.

Turn on Automatic Updates

By default, Firefox automatically updates itself, but you can disable this. It might a good idea to check your update settings and make sure automatic updates are enabled.

To do so, open Firefox and click the hamburger icon (the three horizontal lines) in the top-right corner.

Click the hamburger icon.

On Windows, click “Options”; On a Mac, click “Preferences.”

Click "Options."

When the Options (Windows) or Preferences (Mac) tab opens, scroll down to the “Firefox Updates” section. Make sure the radio button next to the “Automatically Install Updates” option is selected.

In this menu, you can also click “Check for Updates” to manually check.

Select the "Automatically Install Updates" radio button.

From now on, Firefox will automatically update any time Mozilla pushes a new release. You can now rest easy knowing you’ll receive the latest bug fixes as soon as possible.

Benj Edwards Benj Edwards
Benj Edwards is a Staff Writer for How-To Geek. For over 14 years, he has written about technology and tech history for sites such as The Atlantic, Fast Company, PCMag, PCWorld, Macworld, Ars Technica, and Wired. In 2005, he created Vintage Computing and Gaming, a blog devoted to tech history. He also created The Culture of Tech podcast and regularly contributes to the Retronauts retrogaming podcast.
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