Which add-on? Here are some options: * ''If you already use either the "Classic Theme Restorer" or "Tab Mix Plus" extension:'' There is an option somewhere (!) in its extensive settings dialogs to select a different new tab page. * ''If you want to use your home page on the new tab:'' Try https://addons.mozilla.org/firefox/addon/new-tab-homepage/ * ''If you want to set a different page or a completely blank page:'' Try https://addons.mozilla.org/firefox/addon/new-tab-override/ * ''If you want the cursor to move into a search box in the page:'' Try https://addons.mozilla.org/firefox/addon/custom-new-tab/ ''Please only use one of these methods at a time, otherwise there may be conflicts and dysfunctionality.'' '''Setting up New Tab Override and Custom New Tab''' After installing one of these extensions, you need to use its Options page to set the desired new tab page (instead of using about:config). Open the Add-ons page using either: * Ctrl+Shift+a (Mac: Cmd+Shift+a) * "3-bar" menu button (or Tools menu) > Add-ons In the left column, click Extensions. Then on the right side, find New Tab Override or Custom New Tab and click its Options button. ''New Tab Override'' Depending on the height of your screen, you may need to scroll down to enter the desired address into the form. Then you can type or paste in the full Google URL: https://www.google.com/ (using the full URL is fastest because otherwise Google redirects Firefox to that URL) Then tab or click away from that form field and you can test using Ctrl+t. ''Custom New Tab'' Entering your preferred home page address is simple. If you do not check either of the boxes, the extension will set the focus in the page so, for example, the cursor will be in the Google search box. (See screen shot attached.) I had to exit Firefox and start it up again before Custom New Tab started working, but this may have been due to testing so many extensions back-to-back. Success?