Go to Tools>Options>General tab Where it says When Firefox starts -drop down box- Change it to show my home page Make sure you have the home page put into that box under the menu.

How to set your home page - https://support.mozilla.org/en-US/kb/How%20to%20set%20the%20home%20page

Other - You should check your Plugins and update as needed.

1. Check your Plugins - https://www.mozilla.org/en-US/plugincheck/
2. Shockwave Flash 11.5 r502 (newer version available)
   • See - https://support.mozilla.org/en-US/kb/install-flash-plugin-view-videos-animations-games
   • See - https://support.mozilla.org/en-US/kb/keep-flash-up-to-date-and-troubleshoot-problems
3. Adobe PDF Plug-In For Firefox and Netscape 11.0.01 (newer version available)
   • See - https://support.mozilla.org/en-US/kb/use-adobe-reader-plugin-view-or-download-pdf-files

You fix does nothing.

You can check if you have an user.js file in the Firefox profile folder that sets the browser.sessionstore.resume_session_once pref to true.

• http://kb.mozillazine.org/browser.sessionstore.resume_session_once

You can use this button to go to the Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)