Hi, Firefox is able to open multiple home pages with the URLs separated by a 'pipe' ('''|'''), so please see - [[How to set the home page]], and in 'Home Page,' make sure that in addition to your home page URL, there isn't anything else - such as '''about:preferences''', if there is, just delete it, then close the Options tab. ''If your question is resolved by this or another answer, please take a minute to let us know. Thank you!''