Firefox is not recognizing that its update for firefox 4

Upgrade to firefox 4 and tried to add some persona, but firefox tells me im still on 3.5 and so cannot not add them, check out info and defo on firefox firefox 4, erased hides etc., stop laptop and rebooted but still the same.

This is usually caused when an add-on is changing the user agent string (identifies the version of Firefox). To remedy this, you can reset your user agent string.

  1. Type of topic: config in the address bar and press on enter
  2. Accept the warning message that appears, you will be taken to a list of preferences
  3. Locate the general.useragent.overridepreference, right-click on it and select Reset, this function will set the default user agent string in Firefox 4

There are other user agent string settings that may have changed, but these are no longer used in Firefox 4. You can reset them if you want, for details, see https://support.mozilla.com/kb/Websites+or+add-ons+incorrectly+report+incompatible+browser

Tags: Firefox

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