This is not a feature of Firefox, and was likely installed accidentally or maliciously. Either way, instructions to help you disable it follows. If your home page, New Tab page, or search settings have been set by an add-on, you can do the following to change them back to your preferred settings: '''Home Page or New Tab page''' # Type ''about:preferences'' in your address bar. # Click ''Home'' on the left panel. # Under ''New Windows and Tabs'', click ''Disable Extension'' if an add-on is shown as controlling your home page or New Tab page. # Choose your desired home page or New Tab page by clicking the drop-down menu next to ''Home page and new windows'' and ''New tabs''. To learn more, see [[An extension changed my New Tab page or home page]]. '''Search settings''' # Type ''about:preferences'' in your address bar. # Click ''Search'' on the left panel. # Choose a default search engine and any other preferred search settings. To learn more, see [[Change your default search settings in Firefox#w_default-search-engine|Change your default search settings in Firefox - Default search engine]].