Hi, if you are sure you have removed My Maps completely, try this for the New Tab page: Type '''about:config''' into the address bar, press Enter, accept the warning, scroll down to '''browser.newtab.url''' and make sure 'Value' is set to '''about:newtab''' (right click > Modify, to change it if necessary, taking care not to alter anything else). You may then need to restart Firefox. If you need to reset the search engine, please see - [[Use the Search bar in Firefox and manage search engines]]. ''If your question is resolved by this or another answer, please take a minute to let us know. Thank you.''