When you start Firefox in save mode (add-ons disabled), many user setting are also disabled. Restarting FF will return to normal settings. Are you having problems with changing the home page setting? Why did you start safe mode. Press the '''Alt''' or '''F10''' key to bring up the tool bar. Followed by; Windows; '''Tools > Options''' Linux; '''Edit > Preferences''' Mac; ''application name'' '''> Preferences''' Then '''General.''' There are two settings; * '''When Firefox Starts''' When the browser is started, what do you want to display. Many of us choose '''Show My Home Page.''' * '''Home Page''' When a new page is opened, what do you want displayed. # '''Use Current Page'''. Use what ever page(s) are open at that time. # '''Use Bookmark''' # '''Restore To Default.''' about:home shows a Mozilla page with tools. You can use any of these that you wish; '''about:home''' (Firefox default home page), '''about:newtab''' (shows the sites most visited), '''about:blank''' (a blank page), or you can enter any '''web page''' or '''about: ''page''''' you want.