You may need to reset a preference if "Search Results" or "My Search Results" is appearing as a search engine every time you open a new tab (follow steps 1-4 below the image to determine what opens when you click to open a new tab; see about:config usage above) - https://support.mozilla.org/en-US/kb/new-tab-page-show-hide-and-customize-top-sites#w_how-do-i-turn-the-new-tab-page-off

Autotrader values your privacy. To help us understand how you use our site and to create valuable experiences for you, we may collect data about your use of this site directly and through our partners. We want you to know what information we're collecting. We also want you to have control over that information, which is why we're providing this tool. To learn more about Autotrader data policies, please review our Privacy Statement.

×