Browse | Firefox Help

View site information with Page Info

Learn what the Firefox Page Info window shows about a site and what settings you can change directly.

Last updated: 8/25/25

Unload tabs to reduce system memory usage in Firefox

Learn how Firefox’s unload tabs feature helps reduce memory usage on your computer.

Last updated: 3 days ago

Customize items on your Firefox New Tab page

Learn how to customize different items on your Firefox New Tab page.

Last updated: 7/29/25

How to use AI-enhanced tab groups

Firefox allows you to create tab groups

Last updated: 7/23/25

Tab groups

How to use tab groups to organize your tabs in Firefox version 137 and above.

Last updated: 8/17/25

Keyboard shortcuts - Perform common Firefox tasks quickly

This is a list of Firefox keyboard shortcuts for working with tabs, bookmarks, searching the web, playing media files and more.

Last updated: 8/22/25

Sponsors on the home page and New Tab page

Working with its advertising partners, Mozilla may place sponsored shortcuts on the default Firefox home page and New Tab page. Learn more.

Last updated: 7/14/25

Firefox Translation

The built-in Firefox full page translation feature allows you to seamlessly browse the web in your preferred language. Learn more.

Last updated: 11/2/24

Web Push notifications in Firefox

Web Push allows websites to notify users of new messages or updated content while Firefox is open.

Last updated: 8/22/25

Extensions in Private Browsing

You can set which Firefox extensions can run in private windows and which can't, when you install the extension or later on. Learn more.

Last updated: 6/24/25

Make Firefox your default browser

How to make Web links open in Firefox automatically by setting it as the default browser on your computer.

Last updated: 5/14/24

Watch DRM content on Firefox

Learn about Digital Rights Management (DRM) content in Firefox and how to disable and re-enable DRM playback or troubleshoot problems.

Last updated: 6/14/22

Import bookmarks and other data from Google Chrome

Firefox lets you easily import bookmarks and other data from Google Chrome. This article gives you step-by-step instructions for getting it done.

Last updated: 7/13/25

How to set the home page

Learn how to change what page you see when you first start Firefox, click the home button or open a new window.

Last updated: 3/10/24

Export Firefox bookmarks to an HTML file to back up or transfer bookmarks

This article explains how to export your bookmarks to an HTML file, which can be used as a backup or for importing into another web browser.

Last updated: 2/20/25

Troubleshoot and diagnose Firefox problems

This article includes a series of steps you can follow, that will help you fix most problems with Firefox.

Last updated: 7/30/24

Restore bookmarks from backup or move them to another computer

Learn how to restore your bookmarks from the automatic backups that Firefox creates, save and restore your own backups, and move bookmarks to another computer.

Last updated: 12/4/22

Bookmarks in Firefox

Bookmarks are links to web pages that make it easy to get back to your favorite places. Learn the basics of making and managing bookmarks.

Last updated: 12/30/24

New Tab page in Firefox

The New Tab page allows easy access to frequently and recently visited sites.

Last updated: 7/29/25

Allow or block media autoplay in Firefox

Firefox prevents media from playing automatically on websites you visit, unless you grant permission. Learn more about this feature.

Last updated: 8/22/25

Tab context menu

Explore the features available in the tab context menu in Firefox, including options for managing and organizing your tabs.

Last updated: 6/13/25

Take screenshots in Firefox

Screenshots is a tool in Firefox that allows you to save an image of all or parts of a web page.

Last updated: 3/5/25

Use tabs to organize lots of websites in a single window

By displaying a website in a tab, Firefox lets you have multiple websites open inside a single window. Learn the basics of using tabs.

Last updated: 4 weeks ago

Open Firefox automatically when you start your computer

Enable Firefox to launch automatically when Windows starts, providing quicker access to your browser and enhancing your browsing experience.

Last updated: 11/5/24

Use Firefox in Full Screen mode

The Full Screen feature lets you expand the Firefox browser for the current page to fill up your whole screen. This article explains how to turn it on and off.

Last updated: 4/21/23

Unload inactive tabs to save system memory in Firefox

Learn how to free up system memory by unloading inactive tabs in Firefox.

Last updated: 8/16/25

Search suggestions in Firefox

Learn more about how search suggestions work in Firefox.

Last updated: 7/8/25

Control audio or video playback with your keyboard

This page explains the technical documentation on how to control media in Firefox by using the Media Session API.

Last updated: 4 weeks ago

Use Google Trending Search in the Firefox address bar

With Firefox, you can easily tap into Google Trending Searches, right from your address bar, and stay updated on what's capturing the online world's attention.

Last updated: 4/28/25

Firefox View - Access pages from open tabs, recently closed tabs, tabs from other devices and browsing history

Use Firefox View to access pages from your open and recently closed tabs, browsing history and even tabs from other devices. Learn more.

Last updated: 10/4/24

What to do if Firefox won't play any sounds

Learn what steps to take if you can't hear sound in Firefox.

Last updated: 8/19/25

Firefox Reader View for clutter-free web pages

Firefox Reader View removes web page clutter to improve readability. Recent Firefox versions can also read pages out loud.

Last updated: 8/9/24

How do I delete a bookmark?

This article describes different methods to delete pages from your Firefox Bookmarks.

Last updated: 7/18/22

Manage file types and download actions in Firefox

Learn how Firefox handles files with different content types and how to change what Firefox does when you click on or download a file.

Last updated: 6/6/25

View and edit PDF files using Firefox’s built-in viewer

You can view PDF files directly in Firefox with the built-in viewer. Learn how to use the PDF viewer and how to resolve common problems.

Last updated: 4/5/25

Where to go for developer support

Have questions about web development or Firefox Developer Edition? MDN Web Docs has many resources you'll need to build a better web. Learn more.

Last updated: 11/19/24

Import Bookmarks from an HTML file

This article explains how you can take bookmarks saved in an HTML file and add them to your Firefox bookmarks.

Last updated: 7/15/23

Address bar autocomplete suggestions in Firefox

When you type into the address bar, Firefox suggests pages you've bookmarked, tagged, visited before or have open in tabs. Learn more.

Last updated: 1/20/25

How do I use the Firefox spell checker?

Firefox's spell checker streamlines writing by auto-detecting errors, offering quick fixes, and with custom dictionary additions for flawless text.

Last updated: 11/24/24

How to save a web page

Firefox allows you to save a web page to your computer so that you can do things like read it when you're not connected to the Internet. Here's how.

Last updated: 8/11/23

Import data from another browser

We'll show you how to import bookmarks, preferences, browsing history, passwords and other information from another browser.

Last updated: 5 days, 2 hours ago

Sort your bookmarks to quickly find the ones you want

We'll show you how to sort or rearrange your bookmarks in the sidebar or Library window view.

Last updated: 12/4/14

Bookmark Tags - Categorize bookmarks to make them easy to find

You can add "tags" to bookmarks. These tags are used to help categorize bookmarks so you can find them easier. Learn how they work.

Last updated: 12/5/22

Export bookmarks to Safari

You can export your Firefox bookmarks for use in other browsers. This guide shows you how to export your Firefox bookmarks and import them into Safari.

Last updated: 6/16/23

Get started with Firefox - An overview of the main features

Learn about the basic features of Firefox (bookmarks, tabs, search, add-ons, and more) and find links to more articles to explore.

Last updated: 8/23/25

Share browser windows or your screen with sites you trust

Learn how to use Firefox's screen sharing feature safely.

Last updated: 1/11/17

Tab overview menu

Learn how to use the tab overview menu in Firefox to quickly manage and navigate your open tabs

Last updated: 6/12/25

Fix problems that cause images to not show

If you are experiencing difficulty downloading or viewing images in Firefox, follow the troubleshooting instructions in this article.

Last updated: 4/23/23

Fix common audio and video issues

This article will help you solve audio and video problems on web pages.

Last updated: 8/12/25

Import Bookmarks and other data from Microsoft Edge

Firefox lets you import bookmarks and other data Microsoft Edge. This article gives you step-by-step instructions for getting it done.

Last updated: 1/22/24

Audio and video files in Firefox

Learn which audio and video formats are supported in Firefox across desktop and mobile platforms.

Last updated: 7/9/25

Pinned Tabs - keep favorite websites open and just a click away

Pinned Tabs allow you to keep your favorite web apps open and just a click away. This article explains how to use them.

Last updated: 1/25/25

Browsing history in Firefox - View the websites you have visited

Firefox keeps track of the websites you visit when you browse the Web. Learn how to view, search and sort your browsing history.

Last updated: 9/22/23

How to print web pages in Firefox

This article covers the basics of print settings and formatting options in Firefox.

Last updated: 8/22/24

Use mouse shortcuts to perform common tasks in Firefox

This is a list of Firefox mouse shortcuts that you can use to navigate websites, work with tabs, zoom in and out, and more.

Last updated: 8/24/25

How to search the contents of the current page for text or links

When you are viewing a website in Firefox, you can search for words, phrases or links on the page. This article explains how it works.

Last updated: 12/24/23

What Windows 10 end of support means for Firefox users

Learn how Firefox will continue to support Windows 10 even after Microsoft ends updates and what steps Mozilla recommends.

Last updated: 1 day, 22 hours ago

Remove websites from the address bar suggestions

As you type into the address bar, Firefox displays a drop-down list of suggested sites. Learn how to remove some or all of these suggestions.

Last updated: 4/25/23

How to configure Close Tab warnings in Firefox

Learn how to enable or disable the close tab warning that shows when you're about to close multiple tabs, in Firefox version 94 and above.

Last updated: 11/3/21

Shop online with more confidence using Firefox Review Checker

See how reliable product reviews are when you shop online using Review Checker in Firefox.

Last updated: 5/22/25

How it works - Firefox Weather

Explains how the weather features in the address bar and New Tab page work.

Last updated: 5/7/25

Create a desktop shortcut to a website

Learn how to easily make a shortcut on your desktop that will open Firefox and take you to a favorite website.

Last updated: 8/3/25

Mute sound in Firefox tabs

Learn how to identify noisy tabs in Firefox and mute the sound without affecting other tabs or windows.

Last updated: 4/15/21

Search open tabs in Firefox

"Search Tabs" in Firefox's tab menu lets you find a specific open tab.

Last updated: 8/16/25

Get your local weather forecast from the Firefox address bar

Get real-time weather updates conveniently displayed within the Firefox address bar.

Last updated: 5/2/25

View mobile bookmarks on your computer

Firefox lets you sync your mobile bookmarks so you can access them on your desktop.

Last updated: 12/14/23

Print simplified, clutter-free pages in Firefox

Firefox lets you print pages in a simplified format that strips away clutter like buttons, ads, and background images. Learn more.

Last updated: 8/22/24

Playing 4K (Ultra-High Definition) YouTube videos in Firefox

Why the 4K option shows up for some viewers while it doesn't for others.

Last updated: 6/5/22

What is Mozilla Connect?

Mozilla Connect is a space to give product feedback, share ideas for new features, and participate in conversations about Mozilla products.

Last updated: 1/19/25

View articles recommended by Pocket on your Firefox New Tab and homepage

You can view articles and topics recommended by Pocket on your Firefox for desktop homepage and New Tab page.

Last updated: 6/13/25

Use widgets on your Firefox New Tab page

Learn how to manage tasks, focus time, and check the weather using Firefox’s experimental productivity widgets.

Last updated: 3 weeks, 3 days ago

Tab preferences and settings

Learn how to customize tab settings in Firefox to enhance your browsing experience.

Last updated: 1 week, 6 days ago

How to disable the built-in PDF viewer and use another viewer

Firefox has a built-in PDF viewer. We'll show you how to disable it and use another PDF viewer, like Adobe Reader, instead.

Last updated: 5/29/20

Why Open Badges?

What are Open Badges? What differentiates open badges from other digital badges?

Last updated: 8/5/14

What is Mozilla's Open Badges project?

Why Mozilla is involved in Open Badges.

Last updated: 7/15/20

Frequently Asked Questions

Learn basic tips and guidelines for using Firefox and find answers to some frequently asked questions.

Last updated: 9/10/23

Customize your New Tab page to hide or display content

Learn how to show or hide content on your Firefox New Tab page, such as changing which sections to display or showing a blank new tab page.

Last updated: 7/17/25

I can’t play audio on a Remote Desktop Connection

How to solve a known issue with audio playback when you use Firefox on a Remote Desktop Connection.

Last updated: 6/6/22

Videos don't have sound on Citrix

How to fix audio problems when you try to watch videos while using the Citrix Server on Windows.

Last updated: 6/6/22

Access toolbar functions using the keyboard

Use your keyboard to access add-on buttons on the toolbar, as well as perform other toolbar functions not previously available via the keyboard.

Last updated: 7/29/23

Why is each open Firefox tab showing up in the Windows volume mixer?

If each open Firefox tab shows up in your Windows volume mixer, a fix will be released in Firefox version 76. Here is a workaround in the meantime.

Last updated: 5/19/21

Text Encoding no longer available in the Firefox menu panel

The Firefox menu panel no longer has a Text Encoding submenu. It is still available in the Menu bar View menu and as an optional toolbar button.

Last updated: 8/22/25

Copy text from images on Firefox for MacOS

Learn how to copy text from images in Firefox for MacOS.

Last updated: 9/14/22

Content recommendations on the Firefox New Tab page - FAQ

FAQ about recommended stories that appear in the Firefox New Tab page.

Last updated: 7/11/25

How Review Checker preserves user privacy

Learn how Review Checker uses OHTTP to securely send product info to Fakespot, ensuring no personal data or browsing details are shared.

Last updated: 5/22/25

Firefox macOS session resume feature

Learn about Firefox’s macOS session resume feature, which reopens Firefox after system restarts for continued browsing.

Last updated: 11/11/24

Text fragments in Firefox

Text fragments enable users to link directly to a portion of text within a web document, without needing to annotate the text with an ID. Learn more.

Last updated: 1/1/25

Set Firefox as your mail-to default on Windows

Learn how to set Firefox as your MAILTO default on Windows and configure it to handle mail links seamlessly.

Last updated: 3 weeks, 5 days ago

Control Firefox New Tab personalization

The Firefox New Tab page now offers improved personalization controls for search, shortcuts, articles, and more while keeping your privacy protected.

Last updated: 5 days, 18 hours ago

Use web apps in Firefox for Windows

Learn how to turn websites into web apps in Firefox for Windows, customize them, troubleshoot issues, and uninstall them.

Created: 1 week, 6 days ago

Get custom suggestions in the Firefox address bar

See real-time stock info in Firefox Suggest using keywords like “stock AAPL.”

Last updated: 1 day, 22 hours ago

Preview webpages in Firefox with link preview

Learn how to preview links in Firefox, use AI-generated key points, and manage link preview settings.

Created: 1 week, 4 days ago

Firefox is stuck in Troubleshoot Mode

Learn why Firefox may start in Troubleshoot Mode (previously known as "Safe Mode") when you expect it to start normally and how to fix it.

Last updated: 3/11/23

Firefox repeatedly opens empty tabs or windows after you click on a link

Firefox may repeatedly open empty tabs or windows after you click on a link, forcing you to close Firefox. Learn how to fix this problem.

Last updated: 2/27/25

Fix printing problems in Firefox

Learn how to troubleshoot and fix printing problems in Firefox.

Last updated: 8/16/25

Fix video and audio problems on Firefox for Windows N editions

If Firefox has trouble playing video or music on a Windows computer, you can install the Media Feature Pack, if it's missing. Learn more.

Last updated: 8/22/22

Wrong home page opens when I start Firefox - How to fix

Learn how to restore your home page if a third-party software vendor changes it so that their page always opens when you launch Firefox.

Last updated: 6/17/15

Home page with pipe character opens extra tabs when Firefox starts

Set up Firefox to open multiple home pages replacing the pipe character (|) with %7C.

Last updated: 6/13/18

Can't add, change or save bookmarks - How to fix

This article explains what to do if you cannot add new bookmarks or make other changes to your bookmarks.

Last updated: 11/23/24

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