Hello, An external application probably changed some of your settings. If the problem you are experiencing is only for new tabs, you can change a parameter in your Firefox Configuration. To change that parameter, please do the following steps: # In the [[Location bar autocomplete|Location bar]], type '''about:config''' and press '''Enter'''. The about:config "''This might void your warranty!''" warning page may appear. # Click '''I'll be careful, I promise!''' to continue to the about:config page. # Search for the '''browser.newtab.url''' parameter, and '''Modify'' it to "about:home" or whichever site you want. ------------------------------- Alternatively, if you want all of the search settings to be reset to default, you can install the [https://addons.mozilla.org/en-US/firefox/addon/searchreset/ Search Reset Tool]. This extension will reset all search and home page settings, and uninstall itself.