Firefox is a web browser and not a search engine or a service or website as Mozilla does not have a search engine of their own. What it seems like is happening is you are starting the Firefox web browser and upon startup the MSN website is opening up in a Firefox tab either because it set as Homepage or perhaps you have session restore. When you say "'click' the+ add button to go straight to firefox" it sounds like you just opened up a new Tab in the Firefox browser window so you are using Firefox. https://support.mozilla.org/en-US/kb/how-to-set-the-home-page https://support.mozilla.org/en-US/kb/extension-changed-my-new-tab-page Another possibility is https://support.mozilla.org/en-US/kb/wrong-home-page-opens-when-i-start-firefox-how-fix