See these articles for some suggestions:

• https://support.mozilla.com/kb/Firefox+has+just+updated+tab+shows+each+time+you+start+Firefox
• https://support.mozilla.com/kb/How+to+set+the+home+page - Firefox supports multiple home pages separated by '|' symbols
• http://kb.mozillazine.org/Preferences_not_saved

When I open Firefox, It opens http://www.mozilla.com/en-US/firefox/5.0/whatsnew/ What do I do to stop this? Hint- it has nothing to do with options or home page, everything works fine except this.

All tab apps and settings work fine except I also get the Welcome page. I have found 3 "prefs" files. I removed 2 of the system prefs files and it still happens.

To Cor-el,

Please stop replying to my questions.

Thnx

Why didn't you remove all three prefs.js files?

You may have left one file prefs.js that is causing the problems.

Create a new profile as a test to check if your current profile is causing the problems.
See Basic Troubleshooting: Make a new profile:

• https://support.mozilla.com/kb/Basic+Troubleshooting#w_8-make-a-new-profile

If that new profile works then you can transfer some files from the old profile to that new profile (be careful not to copy corrupted files)

See:

• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

here is a solution that worked for me from another poster Hello!. I have this problem too. What I've done is

1. Firefox Help menu up the top button>help>Troubleshooting Information 2. Under Application Basics, click Open Containing Folder 3. there will be prefs.js, user.js and sessionstore.js 4. Delete all 3 files 5. restart and done.

on firefox press Ctrl+alt+del to clear everything, choose everything and delete all.

Hope it helps!