If you agree to enroll:

1. This icon will appear on the Firefox toolbar. The icon reminds you that you are a part of Pioneer. You can reach your Pioneer settings at any time by clicking this icon.

   We’ll change a Firefox preference, too. This will tell us you are willing to participate in Pioneer studies. Continue using Firefox as you normally would. The Pioneer program will not actually collect any data until you decide to join a study.

2. Periodically, we will offer you opportunities to join studies. The purpose of these studies will vary, but might focus on aspects of Firefox or what you experience on the web.

   Studies will collect different types of information about your online behavior, possibly including what web pages you visit and how you interact with them. Before you enroll in a study, you will have access to information explaining the data being collected, who will have access to use it, and the study’s purpose.

You are welcome to leave any individual study or the Firefox Pioneer program entirely at any time.

1. Return to this page by clicking the Pioneer toolbar icon in Firefox or typing about:pioneer into the location bar and pressing Enter.
2. Click the “Leave" button above.
3. Leaving the Pioneer program will immediately unenroll you from any in-progress studies that you had already joined. When you leave Pioneer, you will no longer receive offers to join new studies.

To leave individual studies:

1. Return to this page by clicking the Pioneer toolbar icon in Firefox or typing about:pioneer into the location bar and pressing Enter.
2. All the studies that you have joined will be listed. To leave a specific study, click on the toggle button next to the study.
3. Leaving a study will immediately stop collection of data associated with that study and remove any changes made to the browser as part of the study.

Leaving an individual study will not affect opportunities to join future studies.

Mozilla is sensitive to the nature of the data it may collect in some Pioneer studies. We are always working hard to keep your data private and secure:

• We will not collect any data without first telling you what we intend to collect and getting your permission to do so.
• The data you submit is encrypted by Firefox and not decrypted until it is in a secure datastore that is not connected to the wider internet.
• This data will be linked to a randomly generated ID we only use for Pioneer. It is used to keep a specific user's data together on the server and helps us improve our analysis. No data will be collected from inside Private Browsing windows.
• All proposed studies will be reviewed by a panel consisting of privacy experts, internet researchers and security engineers to ensure that the data being collected is appropriate and respects participant privacy.
• Individual level raw data will never be shared publicly or sold.
• Only a small number of researchers will have access to a study’s raw data. If Mozilla shares aggregate information from studies, we will disclose it in a way that minimizes the risk of participants being identified.
• In the future, Mozilla may pursue commercial opportunities that advance our mission or create more opportunities for competition on the internet using aggregated, non-personally identifiable data collected during the Pioneer program studies. We will disclose our commercial intent ahead of data collection. Mozilla will never sell your personally identifiable information.