Privacy and security
Learn how to protect your privacy and secure your data.
Avoid and report Mozilla tech support scams
Mozilla does not provide telephone support and does not charge for software downloads, upgrades or technical help. Learn more.
Private Browsing on Firefox for Android
Private Browsing on your mobile device is great for viewing websites incognito - without saving information about the sites you visit.
Enhanced Tracking Protection in Firefox for Android
Control who's watching you on the Internet. This article explains how to turn on Tracking Protection in Firefox for Android.
HTTPS-Only Mode in Firefox for Android
HTTPS-Only Mode is automatically enabled in Firefox. You can turn this setting on or off.
Clear your browsing history in Firefox for Android
Firefox keeps a record of your browsing history. Learn how you can remove items from your history one-by-one, or clear your history entirely.
How do I choose what information to sync on Firefox?
Learn how to select what information (bookmarks, add-ons, browsing history and other data) to share across your devices with Firefox Sync.
Clear cookies and website data for a single domain in Firefox for Android
You can delete your cookies and website data for a single domain in Firefox for Android, without losing your logins for other domains.
Clear your browsing history and other personal data on Firefox for Android
Firefox for Android makes it easy for you to delete your browsing information. You can even automatically delete your data every time you quit Firefox.
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.
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
Send usage data on Firefox mobile browsers
This article describes which data is collected by Firefox for Android, Firefox for iOS, Firefox Focus, Firefox Klar and Firefox Lite.
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.
Use Web Apps with Firefox for Android
Learn more about Web apps and how to use them with Firefox for Android.
Disable Firefox Sync on a lost phone or tablet
This article describes what you should do to prevent someone from accessing your passwords on a lost device with Firefox Sync.
Suspicious activity on my Mozilla account
How to protect yourself if suspicious activity is detected on your Mozilla account.
How do you use Adjust in Firefox?
How Adjust is used in Firefox mobile products.
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.
Grant camera access to Firefox for Android
How to grant camera access so Firefox can scan a QR code.
Usage Data Changes for Firefox for iOS and Android
Firefox began collecting new usage data to support the Firefox for iOS 39 and Android 94 releases to support personalization.
Generate strong passwords in Firefox for Android
Learn how to use the built-in password generator in Firefox on Android to create strong, secure passwords automatically.