Settings
Manage and customize your product experience with settings, add-ons, and more.
Add-on Badges
You’ll know if an extension is being regularly reviewed if it has one of the badges listed in this article.
Firefox Page Info window
The Firefox “Page Info” window gives you details about the page you're on. You can also use it to change permissions for the website.
Make Firefox your default browser on Windows
Learn how to make Firefox your default Web browser on Windows 10 and Windows 11.
Firefox options, preferences and settings
Settings panels give you access to Firefox settings. This article describes what types of settings are available in each panel.
Thunderbird and Junk / Spam Messages
This article explains how Thunderbird's adaptive filter learns to identify junk mail ("spam").
Manage local site storage settings
Learn about local storage, how to access storage settings, remove site data or set exceptions for websites to store data in Firefox.
Customize Firefox controls, buttons and toolbars
You can customize Firefox in many ways. This article explains how to customize Firefox controls, buttons and toolbars.
Automatically fill in credit card and payment method data on Web forms
Manage credit card autofill settings in Firefox version 81 and above.
Connection settings in Firefox
Your organization or Internet Service Provider may offer or require you to use a proxy to connect to the Internet. Learn more.
Automatically fill in your address on web forms
Manage your settings for automatically filling out your address on web forms.
Firefox translation for Android
The built-in translation feature allows you to seamlessly browse the web in your preferred language. Learn more.
Personalized extension recommendations
Learn more about how Firefox occasionally recommends extensions you may find interesting and how to opt-out.
Firefox's performance settings
Firefox automatically uses settings that work best with your computer. You can always change these settings.
Import settings and data into Thunderbird for Android
How to import email settings from K-9 and Thunderbird for Android
Tips for assessing the safety of an extension
Here are a few tips for assessing the safety of a third party extension.
Restore the Menu bar in Firefox
The Firefox Menu bar (File, Edit, View, History, Bookmarks, etc.) may be hidden or missing. Learn how to restore the Menu bar.
Add-ons in Firefox for iOS
Why Firefox add-ons are unavailable for Firefox on iOS.
Multi-Account Containers
Add Container tabs to Firefox with the Multi-Account Containers add-on, to separate your work and personal browsing.
Global Privacy Control
How to make Firefox advise websites that you visit not to sell or share your browsing information.
Pop-up blocker settings, exceptions and troubleshooting
Learn what pop-up windows are and what settings Firefox has for blocking or allowing them.
Export your Thunderbird Profile
Thunderbird's export tool lets you create a backup of your Thunderbird profile including accounts, messages, address books, and settings.
Manage my default search engines in Firefox for Android
Firefox for Android lets you add, remove and change your default search engine. Learn to manage your search engines with just a few taps.
Message threading in Thunderbird - keep messages grouped by conversation
Threading is a useful way of displaying message list in Thunderbird with your messages grouped in tree structures by conversations. Here's how to enable it.
Compacting folders
This article explains how Thunderbird stores messages on a disk drive and why it is necessary to periodically compact (purge).
Add the Search bar to your Firefox toolbar
You can search the Web from the address bar or from the New Tab page. You can also add a separate Search bar to Firefox. Learn how.
How to manage your camera and microphone permissions with Firefox
How to enable or block sites from accessing your camera and microphone on your desktop or mobile device.
Manage your extensions using the extensions button in the toolbar
This article describes the new extensions button and how to manage your extensions and their permissions directly from the Firefox toolbar.
Filelink for Large Attachments
Messages with large attachments are often rejected by mail servers. Thunderbird can use web-based storage services to send large file attachments.
Recover lost or missing Bookmarks
If your bookmarks have disappeared, it may be possible to recover them. Learn why bookmarks may seem to be missing and how to get them back.
Turn picture-in-picture mode controls on and off
How to hide the picture-in-picture controls
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.
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.
Change your default search settings in Firefox
Learn how to change search settings in Firefox, such as your default search engine and whether or not search suggestions are displayed.
Legacy browser support extension for Windows
Add-ons and older versions of Firefox ESR may enable your users to run legacy add-ons and view websites that require Internet Explorer.
Bookmarks Toolbar - Display your favorite websites at the top of the Firefox window
Learn how to use the Bookmarks toolbar in Firefox for quick access to often-used bookmarks.
Make Firefox your default browser
How to make Web links open in Firefox automatically by setting it as the default browser on your computer.
How do I restore my tabs from last time?
This article explains the different options you have for opening the tabs and windows you had open the last time you used Firefox.
An extension changed my New Tab page or home page
View and disable extensions or add-ons that change the new tab page or home page.
Signatures
This article explains how to create and use custom signatures (text or images that are automatically appended to messages).
How to set up Firefox Sync in Firefox for Android
How to enable sync on Firefox for Android to sync your bookmarks, credit cards, history, logins and open tabs across your devices.
Compact mode workaround in Firefox
Learn about a workaround to activate compact mode, if you need to. This feature isn't supported and we still recommend using normal mode.
JavaScript settings and preferences for interactive web pages
This article describes what JavaScript is and how to allow or block it on certain websites.
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.
Recommendations from Firefox
This article describes why and how extension recommendations are made, including how to turn off recommendations.
Font size and zoom - increase the size of web pages
Zoom is a feature which allows you to increase or decrease either the size of a web page or the size of the text. This article explains how it works.
How to create and use mailing lists on Thunderbird
A mailing list is used to send one email to a group of contacts. This article explains how to create and use mailing lists in Thunderbird.
Move the navigation bar to the top or bottom of the app in Firefox for Android
Firefox for Android gives you the option to move the navigation bar to the bottom or top of the app if desired.
Restore previous session - Configure when Firefox shows your most recent tabs and windows
Firefox can restore windows and tabs that were open the last time you used it. Learn how to use and configure it.
Archived Messages
This article explains how the "archive" feature of Thunderbird works.
Add or remove a search engine in Firefox
This article explains how to add or remove the search engines that Firefox uses.
Import settings and data into Thunderbird
With Thunderbird's import tool, you can import settings and data from a variety of sources including Thunderbird profiles, other applications or files.
New in Thunderbird for Android version 8
Introduction to the most interesting new features, improvements, and changes visible to users in Thunderbird for Android version 8.
Back up and restore information in Firefox profiles
Firefox stores your personal data and settings in a profile folder. Learn how to back up and restore this important information.
How to disable the Enterprise Roots preference
How to disable the Enterprise Roots preference to fix TLS connection errors caused by antivirus software, without compromising security.
How to opt out of studies on Firefox for Android
Here's how you can opt out of studies on Firefox for Android
Customize Date and Time formats in Thunderbird
How to customize date and time formats in Mozilla Thunderbird using regional settings or override preferences.
Display the Thunderbird menus and toolbar
The menu items File, Edit, View, etc. are located in the menu bar. This article will help you restore a missing menu bar.
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.
How to restore a browsing session from backup
There are special situations where a browsing session may be lost. This article will show you how to recover your lost session.
About Picture-in-Picture in Firefox
The Picture-in-Picture feature allows you to pop videos out of their webpage, so you can watch while continuing to work in other tabs.
Use multiple profiles in Thunderbird
Thunderbird saves personal information such as messages, passwords and user preferences in a "profile". This article describes how to use multiple profiles.
Use Firefox in another language
How to display Firefox in a different language.
Disable or re-enable Pocket for Firefox
The Pocket save and recommendations features are included with Firefox by default. Learn how to disable or remove Pocket from Firefox and how to re-enable it.
Choose display languages for multilingual web pages
How to choose your preferred languages for multilingual web pages.
Manage optional permissions for Firefox extensions
Learn how you can manage optional permissions for extensions in the Firefox Add-ons Manager.
Tab preferences and settings
Learn how to customize tab settings in Firefox to enhance your browsing experience.
Thunderbird add-ons - frequently asked questions
Add-ons are extensions and other additions that add new functionality to Thunderbird or change its appearance.
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.
Customize the Firefox home screen
How to customize the default Firefox home screen
Drag and Drop errors with Firefox Launcher Process enabled and Windows UAC disabled - How to Fix
How to fix Firefox drag-and-drop errors when running Windows as Administrator with UAC disabled and the Launcher Process enabled.
Use bookmark folders to organize your bookmarks
Firefox allows you to group your bookmarks into folders to organize them by topic or task, etc. This article explains how to organize your bookmarks this way.
Usernames and passwords are not saved
Firefox has a password management feature to store usernames and passwords for logging in to websites. Learn why logins might not be saved.
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.
Manage saved passwords in Firefox for iOS
View, edit or delete saved passwords in Firefox on your iPad, iPhone or iPod touch.
Switch from Chrome to Firefox
Firefox can automatically move bookmarks, passwords, history and other preferences from Chrome without deleting it or interfering with any of its settings.
Manage notifications in Firefox for Android
Learn how to control which notifications you receive from Firefox for Android.
Change website appearance settings in Firefox
Change Firefox settings to adjust the appearance of the websites you visit.
Change the fonts and colors websites use
This article describes how to customize the way you see websites by choosing font styles and colors that will override those used by the websites.
View 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.
Share data with Mozilla to help improve Firefox
The Telemetry feature sends us performance and usage data to help measure how Firefox behaves in the real world and improve it. Learn more.
Use the Firefox Sidebar to access bookmarks, history and synced tabs
The Firefox Sidebar feature lets you access your bookmarks, history and synced tabs conveniently at the click of a button.
Auto-close open tabs in Firefox for Android
Learn how Firefox for Android can automatically close tabs after one day, one week or one month.
Set Firefox for Android to open links in native apps
Learn how you can set Firefox for Android to automatically open links in native apps.
Change your wallpaper in Firefox for Android
You can change the wallpaper to customize your homepage in Firefox for Android.
Configure push email for Thunderbird for Android
How to setup push email for selected folders for Thunderbird for Android
Search with the Firefox address bar
Learn how the address bar makes it easy to search the Web, find bookmarks or pages you visited before, use search engines and more.
Setting Firefox as the default browser does not work - What to do
Learn how to make sure Firefox is the default browser if setting that option didn't work, or it got changed by another program.
Find and install extensions on Firefox for Android
There are several extensions that you can install to add features to Firefox. Learn how to find, install and manage these add-ons to Firefox for Android.
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.
Dedicated profiles per Firefox installation
Different Firefox installations now use a separate profile to store your bookmarks, passwords and other settings. Learn more.
Manage extension shortcuts in Firefox
Manage your add-on shortcuts through the Manage Preferences menu in about:addons.
Protect your container tabs with Mozilla VPN
Mozilla VPN encrypts your connection so that third parties can't track your online activity. Learn how to add this protection to Containers.
Block and unblock websites with parental controls on Firefox
This article explains how to block websites or filter website content in Firefox that may be offensive or inappropriate for children.
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.
Hyperlinks in Messages Not Working
When clicking hyperlinks in email, your default web browser should open and display their content. Learn why that may fail and why links may not be clickable.
Installing an Add-on in Thunderbird
Add-ons add functionality to Thunderbird or change its appearance. Learn how to install add-ons to Thunderbird.
Scan QR codes in Firefox for Android
Learn how to use the QR code reader in Firefox for Android.
Access hidden tabs in Firefox
Firefox lets you know when there are tabs hidden in the background so you can access them easily.
Turn on/off saved logins, login sync and login autofill in Firefox for Android
Learn how to save, sync and access your logins in Firefox for Android
Importing Safari data into Firefox
Import data from your Safari browser into Firefox. You must enable Full Disk Access on macOS version 10.14 (Mojave).
Secure Firefox passwords with device sign-in
Learn more about this Firefox anti-snooping feature designed to protect your logins and passwords from unauthorized access.
Manage Firefox with Microsoft Endpoint Manager (Intune)
How to manage Firefox Enterprise with Microsoft Endpoint Manager (Intune).
Firefox Suggest for Mobile
Firefox Suggest provides personalized website suggestions as you type in the address bar.
Thunderbird Android Telemetry
This article describes controlling data that may be collected by Thunderbird for Android, to help improve performance and stability.
What to do if you can't download or save files
If you can't download or save files with Firefox, this article explains the steps to take to fix this problem.
Accessibility features in Firefox - Make Firefox and web content work for all users
Learn about features that make Firefox and web content accessible if you have vision problems or limited ability to use a keyboard or mouse.
How to disable or change the Thunderbird start page
Change the Thunderbird start page to any webpage, or set it to a blank page.
Configuration Options for Accounts
Learn about the Account Settings window including server settings, identities, signatures, and more.
Config Editor
Using the config editor to view or edit Thunderbird preference settings.
How to Customize Toolbars
This article explains how to customize the position and contents of Thunderbird toolbars.
Built-in themes in Firefox - alternative to complete themes
How to enable Firefox's built-in themes.
Security panel - Junk, scam, antivirus, and password settings in Thunderbird
Learn about the Security panel of the Thunderbird Options/Preferences window including junk mail control, scam detection, antivirus integration, and passwords.
Customize Firefox using AutoConfig
How to use AutoConfig files to set and lock preferences that are not covered by Firefox policies.
Assign shortcuts to search engines
How to search faster with search shortcuts.
Set up Certificate Authorities (CAs) in Firefox
Learn how to set up certificate authorities (CAs) for your organization in Firefox for Enterprise.
Review installed extensions
Reviewing the extensions you have installed periodically can make it harder for malicious extensions to put your security and privacy at risk.
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.
Block links from opening in external apps
Learn how to stop links from automatically opening in external applications.
Change the program used to open email links
Learn how to change the email program that Firefox opens when you click a “mailto” link, or use the “Email Link” and “Email Image” features.
HTML5 audio and video in Firefox
Firefox can handle audio and video content on web pages and can open some media files. Learn about supported formats and managing playback.
Using Dark Theme in Firefox for Android
You can change the look of your Firefox app at any time by selecting between Light and Dark mode.
FAQ Changing IMAP to POP
If your mail server supports both IMAP and POP, Thunderbird will use IMAP by default. Use these instructions to manually configure a POP account.
Names but no Email Addresses are Displayed
I can only see the message sender's name, not address!
Message List Columns
This article explains how to configure the columns that Thunderbird displays in message lists.
How to Install and Use another Language in the Dictionary on Thunderbird
How to install and use additional language dictionaries on Thunderbird.
Open Search
Instantly take part of a message and search for it in Bing, Yahoo, Twitter or other websites.
How to Subscribe to News Feeds and Blogs
An introduction to RSS feeds, and instructions on how to use them in Thunderbird.
Manage saved passwords in Firefox for Android
Learn how to change or remove saved login information in Firefox for Android.
Voice input in Firefox for Android
Learn how to use the voice input feature to speak into the address bar instead of typing text.
Access your add-ons with a Mozilla account
The addons.mozilla.org (AMO) site is using Mozilla accounts to offer a more integrated experience across all Mozilla services and products.
Scan QR codes in Firefox for iOS
Learn about the QR code reader in Firefox for iOS.
How to replace Google Assistant with a Firefox search
Make Firefox search replace Google Assistant.
How is Facebook Container different from Multi-account Containers?
The difference between Facebook Container and Multi-Account Containers
Customize Firefox using Group Policy (Windows)
Firefox supports setting policies via Active Directory as well as using Local Group Policy.
Firefox starts automatically when I restart Windows
If Firefox was open when Windows shut down, Firefox may reopen automatically the next time you start Windows. You can disable this feature.
How to use collections on addons.mozilla.org
How to create, edit, share, and delete a collection on addons.mozilla.org.
Install themes to change the look of Thunderbird
A theme is a type of add-on which changes the visual appearance of Thunderbird. Learn how to find, install, and manage themes within Thunderbird.
Debugging policy issues
This article will help you figure out problems with policies not applying.
Unable to install add-ons (extensions or themes) in Thunderbird
This article describes various reasons that would cause an add-on not to be able to be installed and what you can do to fix the issue.
Manage Firefox updates
Learn about automatic updates for Firefox deployments and how to ensure that the latest security patches are applied and all features are available.
See active policies on Firefox for Enterprise
How to see what policies you have active on a desktop computer.
Collections in Firefox
Learn how to use the Collections feature.
Changing your two-step authentication device for your Mozilla account
What to do if you have two-factor authentication (2FA) setup on your account and need to migrate to a new device or phone.
Tab context menu
Explore the features available in the tab context menu in Firefox, including options for managing and organizing your tabs.
End of support for Adobe Flash
Like other browsers, Firefox has ended support for Adobe Flash. Learn about the details here.
Primary Password is replacing Master Password in Thunderbird
Primary Password is replacing Master Password. Learn more about why we are making this change.
Remove the Other Bookmarks folder from the Bookmarks Toolbar
How to remove the Other Bookmarks folder from the Bookmarks Toolbar in Firefox
View recently saved bookmarks from your homepage on Firefox for iOS
View your recently saved bookmarks and reading list items on your homepage in Firefox for iOS.
The language of the websites I visit changes when I turn Mozilla VPN on - What to do
This article explains what to do if the language of the websites you visit changes when you use Mozilla VPN
View articles recommended by Pocket on your Firefox for iOS homepage
You can view articles and topics recommended by Pocket on your Firefox for iOS homepage.
Choose your opening screen for Firefox for iOS
Choose what you see when you return to the Firefox for iOS app.
Change your wallpaper in Firefox for iOS
You can change the wallpaper to customize your homepage in Firefox for iOS.
Automatically fill in your address on web forms in Firefox for Android
Manage your settings for automatically filling out your address on web forms in Firefox for Android
How to disable the Firefox Relay autofill icon on online fields and websites
The Relay integration with Firefox Password Manager makes a shortcut icon appear next to email fields on websites. Learn how to disable it.
Upgrading from an older version of Thunderbird
This article will help you upgrade old versions of Thunderbird to the latest version.
Unified Toolbar
Intro to the Unified Toolbar and how to customize the buttons for the different toolbars for: Mail, Address Book, Calendar, Tasks, Chat and Settings "Spaces."
Global Privacy Control in Firefox for Android
How to make Firefox for Android advise websites that you visit not to sell or share your browsing information.
Multiwindow support on iPad for Firefox
Learn how to use Firefox in multiple windows on your iPad for better multitasking and productivity.
Add alt text to images in your PDFs using Firefox
Image alt text is crucial for document accessibility. Learn how to create it manually or with our Firefox AI-powered feature for PDF files.
Choose your preferred PDF viewer in Firefox
Learn how to set a different PDF viewer for downloaded files in Firefox instead of using the built-in viewer.
Restore the default Smart Bookmarks Folders
Learn how to restore the default Most Visited or Recent tags "Smart Bookmarks" folders if you deleted them.
How to fix preferences that won't save
This article tells you how to fix issues where Firefox can't save some or all of the preference settings that you try to change.
Cannot remove an add-on (extension or theme)
This article describes how to uninstall an extension or theme that can't be removed normally. This includes problematic toolbars and search bars.
Changes to toolbars and window sizes are not saved
If Firefox doesn't remember changes you've made to toolbar customizations or to browser window size or position, this article has solutions.
Firefox doesn't save web form entries
Firefox's autocomplete feature lets you save and reuse text field entries in web forms. If you're no longer able to auto-fill your forms, follow these steps.
Change the default language of Firefox for Android
Learn how to change the default language on Firefox for Android.
Closing multiple Tabs - option to disable warning
Firefox warns when multiple tabs are closed, there is an option to disable this warning if not required
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.
How do I quit Firefox for Android?
Add the Quit option to your menu to automatically delete your browsing history and close all tabs every time you exit the app.
Creating a Newsgroup Account
Thunderbird can be used to read messages from and write messages to Usenet newsgroups.
Configuration Options for Identity
This page describes Thunderbird's configuration options that affect your identity.
Configuration Options for Tags
This page describes Thunderbird's configuration options as they relate to tagging messages.
Configuration Options for Attachments
This page describes Thunderbird's configuration options for attachments.
Certificates
Block a sender
Installing Thunderbird on Ubuntu Linux
How to Customize the New Mail Sound
Learn how to customize the sound that plays when a new email message is received.
Instant Messaging and Chat
As of Thunderbird 52.x, Thunderbird supports instant messaging and chat using IRC, XMPP, Twitter, and Google Talk
Installing and Using another Language in the Dictionary
Uninstall Firefox for Android extensions
How to uninstall Firefox for Android add-ons/extensions
Enable or disable search engines on Firefox for iOS
Learn how to enable or disable search engines from Firefox in your iPhone or iPad.
Customize Firefox Home on iOS
Firefox Home on your iOS device displays your shortcuts, your library, recently visited tabs, recently saved bookmarks and Pocket article recommendations.
Save passwords in Firefox for Android
How to enable or disable saved logins in Firefox for Android.
Change the default language on Firefox for iOS
How to switch to another default language on Firefox for iOS.
Set Firefox as the default browser for iOS
In iOS 14+ you can now change your default browser. Learn how to change your default browser or other options for older versions.
Add Firefox to the Today view on your iOS device
Add the Firefox widget to the Today view on your iPhone, iPad or iPod touch to open new tabs or access copied links quickly.
Set a homepage in Firefox for iOS
How to set a URL for your home page, accessed from the Homepage option in the menu.
Change the default email program in Firefox for iOS
Change your default mail app in Firefox for iOS.
Advanced panel - System, network, updates, and other advanced settings in Thunderbird
Learn about the Advanced panel of the Thunderbird Options/Preferences window including scrolling, system integration, network, update, certificates, etc.
Cliqz Recommendations in Firefox
Learn about Cliqz recommendations in Germany.
Turn search suggestions on or off on Firefox for iOS
How to turn search suggestions on or off.
New Tab settings in Firefox for iOS
Customize your New Tab settings.
Privacy panel - Remote content and cookie settings in Thunderbird
Learn about the Privacy & Security options in Thunderbird (mail/web content, cookies, passwords, junk/spam detection, data collection, antivirus, certificates).
Customize Firefox using policies.json
Cross-platform policy support can be implemented using a JSON file called policies.json.
Change themes in Firefox for iOS
Learn how to switch between light and dark themes on Firefox for iOS.
Feed reader replacements for Firefox
Firefox's built-in support for web feeds and Live Bookmarks ended in December 2018 with version 64. Learn more and find alternatives.
Manage policies on macOS desktops
Starting with Firefox 64 and Firefox ESR 60.4, Firefox supports configuration files on macOS.
Disable high contrast mode in Firefox
How to disable high contrast mode if it's causing problems on some web pages.
Privacy settings in Firefox for Enterprise
How to disable features for minimize information sent to Mozilla.
Enforce policies on Firefox for Enterprise
Types of policy engines for Firefox for Enterprise.
Where can I find a list of policies for Firefox for Enterprise?
Where to find policies for Windows, Mac and Linux.
Managing policies on Linux desktops
How to manage policies on Linux desktops.
Will policies I set work if users already installed Firefox?
Policy support for Firefox is implemented using Group Policy.
Make Firefox for Enterprise the default browser
Learn how to configure the computers in your domain to use Firefox for Enterprise as the default browser.
How to fix Pocket login issues
Learn how to add an exception for Pocket in Firefox, to prevent being prompted to sign in to Pocket when saving to the site.
Firefox Browser welcome pages - helping you get more from Firefox products and services
When you open Firefox after reaching a certain user milestone, you’re shown a Firefox Browser welcome page in a new tab. Learn more.
Dangerous directories
Some system folders are not allowed when setting Thunderbird storage location as they cause issues.
Playing videos in Firefox for Android
Firefox for Android gives you lots of options for playing video and audio on your phone, including background playback and auto-play settings.
Customize Firefox on macOS using configuration profiles
On macOS, Firefox supports customizing policies with a properties list (.plist) file that can be converted to a configuration profile. Learn more.
Firefox for Enterprise Kiosk mode
Kiosk mode locks down Firefox in order to protect the kiosk from users. Learn more.
Pocket sponsored stories on new tabs
Pocket occasionally partners with select publishers and brands to deliver sponsored stories on the Firefox New Tab page. Learn more.
My privacy settings were changed from Custom to Standard
If your Custom settings match the settings in Standard, you will be switched back to Standard. This will not affect your settings.
Turn push notifications on or off in Firefox for iOS
How to enable or disable push notifications for Firefox on your iPad, iPhone or iPod.
Add a Firefox widget to your Home screen
Learn more about how to add a Firefox widget to your Home screen.
Grant camera access to Firefox for Android
How to grant camera access so Firefox can scan a QR code.
Use Web Apps with Firefox for Android
Learn more about Web apps and how to use them with Firefox for Android.
Mozilla Voice Server Proxy Retiring
Mozilla is ending official support for the Mozilla Voice Proxy Server and its related projects. Learn more about the retirement of server and extensions.
Unable to uninstall add-ons (extensions or themes)
This article describes how to uninstall an extension or theme that can't be removed normally.
How to opt out of studies on Firefox for iOS
Here's how you can opt in or out of studies on Firefox iOS
View recent tabs on your Firefox for iOS homepage
You can view your recent tabs on your homepage in Firefox for iOS under the Jump Back In section.
View bookmarks on your home screen
You can access your bookmarks and recent searches from your Firefox for Android home screen.
View recent tabs on your Firefox for Android homepage
View your recent open tabs on your Firefox for Android homepage.
View articles recommended by Pocket on your Firefox for Android homepage
You can view articles and topics recommended by Pocket on your Firefox for Android homepage.
Personalize Firefox with colorways
Personalize your browsing experience with Colorways themes for Firefox, created in partnership with an industry color specialist.
How file downloads are handled in Firefox
This article describes changes to how downloads are handled and answers some frequently asked questions.
How to move the search bar in Firefox for iOS
The search bar in Firefox for iOS will appear at the bottom of the screen by default. However, you can choose to move it to the top of the screen instead.
New in Thunderbird 102
Detailed introduction to the most interesting new features, improvements, and changes visible to users in Thunderbird 102.0.
Manage your Mozilla account newsletter and email preferences
Change your email preferences to receive the emails that are of most interest to you, or to unsubscribe from email communications.
Site Permission Add-ons
Sites can ask to install permission add-ons that modify Firefox’s default security behavior to give them extra privileges. Learn more.
What should I do if I'm redirected to the Firefox Relay FAQ when clicking a link within an email?
After enabling the Remove email trackers Firefox Relay option, certain links in forwarded emails may redirect to our FAQ page. Learn more.
Domains to allow for Firefox
This article is primarily for Firefox for Enterprise. It lists domains that should be allowed by your firewall or other software, so Firefox works correctly.
New in Thunderbird 115 Supernova
Detailed introduction to the most interesting new features, improvements, and changes visible to users in Thunderbird 115.0 Supernova.
Autofill Credit Cards in Firefox for iOS
Streamline your online shopping with Firefox for iOS Credit Card and Payment Method Autofill. Learn more.
Address autofill on Firefox
Experience the seamless Address Autofill in Firefox iOS, simplifying address entry on websites.
Enable or disable Local Network Access on iOS
LAN Bypass allows you to control whether or not your device can access devices on the local network while the VPN is on. Examples of these can be your network printer, your smart TV, AirDrop and CarPlay.
Choose which browser opens Pocket web content on your Android
Pocket for Android lets you choose which browser to open web content with when viewing articles. Follow these steps to select your preferred browser for a smoother reading experience.
Notifications in Thunderbird
This allows Mozilla to push important, time-sensitive notifications to users. These notifications are scheduled based on version, OS and locale.
Gmail and Thunderbird for Android
How to use gmail and gmail with oauth2 with Thunderbird for Android and K-9.
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.
Make Firefox the default browser on Android
This article explains how to set Firefox as your default browser on your Android device.