This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Every time Firefox 6.0 is launched, it checks for compatibility of add-ons, and it displays the Welcome to Firefox page "Your Firefox is up to date.": <http://www.mozilla.com/en-US/firefox/6.0/whatsnew/>.

  • 3 replies
  • 8 have this problem
  • 2 views
  • Last reply by cor-el

more options

Also, unable to change home page.

Firefox Help articles "Firefox has just updated tab shows each time you start Firefox" and "Preferences are not saved" don't seem to help:

<https://support.mozilla.com/en-US/kb/Firefox%20has%20just%20updated%20tab%20shows%20each%20time%20you%20start%20Firefox>

<https://support.mozilla.com/en-US/kb/Preferences%20are%20not%20saved>

Also, unable to change home page. Firefox Help articles "Firefox has just updated tab shows each time you start Firefox" and "Preferences are not saved" don't seem to help: <https://support.mozilla.com/en-US/kb/Firefox%20has%20just%20updated%20tab%20shows%20each%20time%20you%20start%20Firefox> <https://support.mozilla.com/en-US/kb/Preferences%20are%20not%20saved>

All Replies (3)

more options

Try to delete the file compatibility.ini in the Firefox Profile Folder

more options

Thank you for your reply. At your suggestion, I tried deleting compatibility.ini, but that has no effect. Anything else I can try?

Modified by khfirefox

more options

You did try to delete the file prefs.js in the Firefox Profile Folder?


Create a new profile as a test to check if your current profile is causing the problems.

See Basic Troubleshooting: Make a new profile:

There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.

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:

Modified by cor-el