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Firefox is not recognising that its upgraded to firefox 4

Posted

Upgraded to firefox 4 and tried to add some persona's but firefox tells me im still on 3.5 and therefore cant add them, check about firefox info and defo on firefox 4, cleared cache etc, shut down laptop and rebooted but still the same.

Upgraded to firefox 4 and tried to add some persona's but firefox tells me im still on 3.5 and therefore cant add them, check about firefox info and defo on firefox 4, cleared cache etc, shut down laptop and rebooted but still the same.

Chosen solution

This is typically caused when an add-on changes the user agent string (identifies the version of Firefox). To rectify this you can reset your user agent string.

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

There are other user agent string settings that may have been modified, 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

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Additional System Details

This happened

Every time Firefox opened

This started when...

when upgraded to firefox 4 today

Installed Plug-ins

  • np-mswmp
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Shockwave Flash 10.1 r102
  • Adobe Shockwave for Director Netscape plug-in, version 11.5
  • iTunes Detector Plug-in
  • GEPlugin
  • Next Generation Java Plug-in 1.6.0_24 for Mozilla browsers
  • Google Update
  • Adobe PDF Plug-In For Firefox and Netscape

Application

  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-GB; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 (.NET CLR 3.5.30729) FBSMTWB

More Information

i use vista

TonyE
  • Moderator
1044 solutions 8863 answers

Chosen Solution

This is typically caused when an add-on changes the user agent string (identifies the version of Firefox). To rectify this you can reset your user agent string.

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

There are other user agent string settings that may have been modified, 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

This is typically caused when an add-on changes the user agent string (identifies the version of Firefox). To rectify this you can reset your user agent string. # Type '''about:config''' into the location bar and press enter # Accept the warning message that appears, you will be taken to a list of preferences # Locate the preference '''general.useragent.override''', right-click on it and select '''Reset''', this will set the user agent string back to the default in Firefox 4 There are other user agent string settings that may have been modified, 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

Question owner

Thank you, done and working.

Thank you, done and working.