Firefox as the Default Browser

Firefox as your default browser (#default)

For Windows systems to make Firefox the default browser
 Go to My Computer,  Tools, Folder Options, File Types ...,
   assign file types   HTM,  HTML  to    the Firefox browser
   anything opened in Firefox is going to be processed by Firefox
   anything opened in Internet Explorer is going to be processed by IE
 then make sure that IE  checks itself, so it knows it is not the default browser.

 In Firefox  
  Tools,  Options,  General,
     [x] Firefox should check if it is the default browser
     then press [Check Now]
  you should get a response "Firefox is already set as your default browser"

 In Internet Explorer  
   Tools, Internet Options, Programs (Tab),
     [x] Internet Explorer should check to see whether it is the default browser

 In Windows Vista
    Control Panel,  Default Programs, Set Default Programs
        Firefox should have all of its defaults (and did when I had a problem)
    Control Panel, Default Programs, Set Associations, under protocols
         for http: and https:   Firefox was not listed inside
         Reinstalling Firefox  seems to have worked, now listed inside. 

Problems (#problems)

Related   (#related)

• Firefox Customizations, my notes on customizing Firefox and the extensions that I am using, or a few that I discarded.
• Default Browser (MozillaZine) rather involved only use if you don't have access to IE.