4 Easy Ways to Download and Install Mozilla Firefox

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A beginner's guide to getting the Firefox browser on desktop or mobile

Co-authored by Stan Kats and Rain Kengly

Last Updated: June 27, 2024 Fact Checked

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• Using Windows
|
• Using Mac
|
• Using iPhone or iPad
|
• Using Android
|
• Troubleshooting
|
• Video
|
• Q&A

|Show more |Show less

Firefox is a popular web browser that can be downloaded for free on computers, tablets, and smartphones. You can find the latest version on the official website. Here's how to download and install Mozilla Firefox on your Windows or Mac computer, iPhone, iPad, or Android.

Quick Steps

1. Go to https://www.mozilla.org/en-US/firefox/new/ in a web browser.
2. Click Download Firefox.
3. Launch the installer file.
4. On Mac, drag Firefox into the Applications folder.

Steps

Section 1 of 5:

Using Windows

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1. 1
   Go to https://www.mozilla.org/en-US/firefox/new/ in a web browser. You can use Microsoft Edge or another browser.
2. 2
   Click Download Firefox. This is the blue button.

   • The installer will download to your computer.
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3. 3
   Open the installer. In most cases, this will be in your Downloads folder.

   • If needed, click Open. You may also need to click Yes if a security alert pops up.
   • When the installation is complete, Firefox will open.
4. 4
   Set Firefox as your default browser (optional). If you want to use Firefox as your default browser, do the following:

   • Click the Start menu.
   • Click Settings.
   • Click Apps.
   • Click Default apps.
   • Click + or your current default browser.
   • Select Mozilla Firefox.
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Section 2 of 5:

Using Mac

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1. 1
   Go to https://www.mozilla.org/en-US/firefox/mac/ in your browser. You can use Safari or another browser.
2. 2
   Click Download Firefox. This is the blue button.

   • The installer will download to your computer.
   • You may need to click Allow to let your browser download the file.
3. 3
   Open the installer. On Safari, click the download arrow in the top-right corner. Click the magnifying glass icon next to the Firefox installer to quickly open the file's location in the Finder.

   • When you open the installer, it will begin downloading Firefox.
4. 4
   Drag Firefox into the Applications folder. A window will open for you to do so.

   • You can now use Firefox.
5. 5
   Set Firefox as your default browser (optional). If you want to use Firefox as your default browser, do the following:

   • Click the Apple menu.
   • Click System Settings/Preferences.
   • Click Desktop & Dock.
   • Scroll down on the right panel and locate the Default web browser menu.
   • Select Mozilla Firefox.
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Section 3 of 5:

Using iPhone or iPad

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1. 1
   Open the App Store. This looks like a white A with a blue background. You can usually find this on your home screen or in the App Library.
2. 2
   Tap Search. This will be in the bottom-right corner.
3. 3
   Type firefox. Results will load as you type.
4. 4
   Tap Get. This will be next to Firefox: Private, Safe Browser.

   • You can also tap it to view the app's details, such as previews, ratings, and more.
5. 5
   Verify the download. You may need to provide your Face ID, Touch ID, or Apple ID password to approve the download. Once approved, the app will begin to install.

   • When it's finished, you can find the app on your Home screen or App Library.
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Section 4 of 5:

Using Android

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1. 1
   Open the Google Play Store

   

   . This looks like a multicolored triangle with a white background.
2. 2
   Tap the search bar. You can find this at the top of the screen.
3. 3
   Enter Firefox in the search bar. Results will load below.
4. 4
   Tap Firefox Fast & Private Browser. You'll be redirected to Firefox's app page.
5. 5
   Tap INSTALL. This is at the top-right of the page. Firefox will begin downloading.

   • If prompted, tap ACCEPT to initiate the download.
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Section 5 of 5:

Troubleshooting

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1. 1
   Check your security settings. If you're not using an administrator account or have certain protections enabled, you'll need to approve the download first.

   • If you aren't the admin, you'll need to ask them for approval and/or the password.
2. 2
   Free up some space. Check your hard disk and make sure there's enough room for Firefox to download. Uninstall any unnecessary programs.
3. 3
   Update your system. Whether you're using Mac, Windows, iOS, or Android, make sure your system is running the latest possible update. These include common bug fixes.
4. 4
   Temporarily disable your antivirus. Some antivirus programs will block all third-party software downloads. Despite being a trusted source, this may include Firefox. Turn off your antivirus until you've successfully downloaded Firefox, and then turn it on again.
5. 5
   Check your Internet connection. Make sure you're connected to a reliable network while downloading. An unstable Wi-Fi network can prevent you from properly installing the file.
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Community Q&A

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• Question

  How do I install version 45?

  

  Evan Thomas

  Community Answer

  If it is supported on your device, then the Firefox installer will say there's a new update. Press "Install." If it doesn't work, it's probably not supported on your device, you already have it, or you need to reinstall Firefox.

  Thanks! We're glad this was helpful.
  Thank you for your feedback.
  If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow

  Yes No

  Not Helpful 2 Helpful 1
• Question

  Can I have both Mozilla and Chrome on my PC?

  

  Community Answer

  Yes. Firefox and Chrome are separate from each other, and having one will not affect the other.

  Thanks! We're glad this was helpful.
  Thank you for your feedback.
  If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow

  Yes No

  Not Helpful 2 Helpful 6
• Question

  Can I have both Microsoft Edge and Firefox?

  

  Community Answer

  Yes. Both are separate apps and most computers and devices will allow you to have both at the same time. If not, select the one you most prefer.

  Thanks! We're glad this was helpful.
  Thank you for your feedback.
  If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow

  Yes No

  Not Helpful 1 Helpful 0

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