Turn credit card autofill on or off

1. In the Menu bar at the top of the screen, click Firefox and then select Preferences or Settings, depending on your macOS version.Click the menu button and select Settings.
2. Click the Privacy & Security panel and scroll down to the Forms and Autofill section.
3. Click the checkbox next to Autofill credit cards to turn it on, or uncheck the box to turn it off.

Advanced: Disable credit card autofill in about:config

This feature can also be disabled manually by modifying the following preferences via the Configuration Editor (about:config) to false and then restarting Firefox:

Turn payment methods autofill on or off

1. In the Menu bar at the top of the screen, click Firefox and then select Preferences or Settings, depending on your macOS version.Click the menu button and select Settings.
2. Click the Privacy & Security panel and scroll down to the Autofill section.
3. Click the checkbox next to Save and fill payment methods to turn it on, or uncheck the box to turn it off.

Require authentication for autofill

To add further protection, you can select to require authentication before autofilling the credit card information. This requires your operating system password (or authenticate using your fingerprint, face, or voice login, if enabled) this is usually the password used to unlock your computer. Please note, this is not your Mozilla account password.

What if I don't have an OS password?

• Windows: If you aren't using a Windows password, you will not be prompted to enter it.
• macOS: If you don't have a password, click the OK twice to continue. Note: This is a known issue and will be fixed in a future update.

Edit your saved credit cards

Use this setting to add, remove or change saved credit card data in Firefox.

1. In the Menu bar at the top of the screen, click Firefox and then select Preferences or Settings, depending on your macOS version.Click the menu button and select Settings.
2. Click the Privacy & Security panel and scroll down to the Forms and Autofill section.
3. Click the Saved Credit Cards… button.
4. Choose one of the following:
   • Add…: Enter a new credit card using this button.
   • Edit…: Select the credit card you want to change, then click Edit to change it.
   • Remove: Select the credit card you want to delete, then click Remove.
5. Click the ✕ to save your changes and close the window.

Edit your saved payment methods

Use this setting to add, remove or change saved payment method data in Firefox.

1. In the Menu bar at the top of the screen, click Firefox and then select Preferences or Settings, depending on your macOS version.Click the menu button and select Settings.
2. Click the Privacy & Security panel and scroll down to the Autofill section.
3. Click the Saved payment methods button.
4. Choose one of the following:
   • Add…: Enter a new payment method using this button.
   • Edit…: Select the payment method you want to change, then click Edit to change it.
   • Remove: Select the credit card you want to delete, then click Remove.
5. Click the ✕ to save your changes and close the window.