We use your UA and OS information to optimize our products for your web browser and operating system.</li> <li>We use anonymous diagnostic data to maintain quality of service.</li> </ul>4. Do we use web browser cookies, or pixels?<p>Cookies are removable text files stored in your web browser. We may ask your web browser to store one or more cookies when you use our products in order to make them work for you. Pixels or “web beacons” are similar in function to cookies. We may ask your web browser to load pixels for our products to better understand how you use them so we can improve them, and for other business purposes.</p>5. Will we ever contact you (and how to opt-out)?<ul> <li>