Reset the browser.startup.homepage_override.mstone pref via the right-click context menu to the default on the about:config page and close and restart Firefox to restore the about:home page to its default.
Close and restart Firefox.

• http://kb.mozillazine.org/about:config

Thanks for the reply cor-el but can you please put the above in layman's terms, I went into the about:config page but it is a maze of stuff and I am not fully understanding what I should be doing. If it is not too much trouble can you please step out the directions so I do not make a mistake.

Thanks

1. Open the about:config page via the location bar and confirm that you want to go to that page.
2. Type in the Filter at the top: mstone

That should bring the browser.startup.homepage_override.mstone pref in view.
3. Right click that pref line to bring up the right-click context menu and click the Reset entry.
4. Close and restart Firefox to see if it has helped.

See also:

• http://kb.mozillazine.org/About:config#Adding_modifying_and_resetting_preferences

Thanks cor-el, did as instructed restarted Firefox but no difference, the search button depresses when I click on it as if it is allowing me to connect to a web page but then it just sit's there.

Also as a side issue, I know one problem at a time, but hopefully when you have helped me out with the above issue you can see if you know how to fix this, when I go into my Outlook 2010 and if there is a link in an email once I click on the link I get this error message come up, see added image. It still allows the link to open but I am not sure why it has suddenly started happening as it never happend until I upgraded Firefox. I thought this upgrade was supposed to make Firefox better but I am getting more problems than if I had never bothered to upgrade.

Thanks Mate

See:

• http://kb.mozillazine.org/Default_browser

• https://support.mozilla.org/kb/How+to+make+Firefox+the+default+browser
• https://support.mozilla.org/kb/Setting+Firefox+as+the+default+browser+does+not+work

Tried all 3 no go.