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

can't get the upgrade to over-write the older version

  • 4 cavab
  • 1 has this problem
  • 6 views
  • Last reply by cor-el

more options

i have tried to upgrade firefox but the older version keeps coming up. How do i get the newest version to over-write the older - according to my info i am using 25.0.1 which seems to be the newest version but i have some website saying i am using an older version. I have windows vista 2007

i have tried to upgrade firefox but the older version keeps coming up. How do i get the newest version to over-write the older - according to my info i am using 25.0.1 which seems to be the newest version but i have some website saying i am using an older version. I have windows vista 2007

All Replies (4)

more options

Edit: Actually it appears your useragent is stuck at a old version. Firefox 4.0 and newer UA is not affected like this.

Acording to your System Details: User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.17) Gecko/20110420 Firefox/3.6.17 ( .NET CLR 3.5.30729) FBSMTWB

See this on how to reset the UA: https://support.mozilla.org/en-US/kb/websites-say-firefox-outdated-or-incompatible#w_firefox-is-showing-the-wrong-user-agent


What is the website that is saying you have a older version?.

Is it say http://www.google.com/firefox ? as this used to be the old Firefox start homepage (not maintained by Google anymore) up till Firefox 3.6.28 as it has been about:home ever since Firefox 4.0

Modified by James

more options

You may need to clear the preference that is misreporting your version number. See: How to reset the default user agent on Firefox.

more options

Also, the "FBSMTWB" that appears in your current user agent string (you'll see it in about:config when you venture in there) is associated with an extension that many people find annoying -- unfortunately I can't recall which one it was.

If you haven't reviewed your extensions for a while, you might want to see whether any deserve to be disabled or removed, particularly if they are nonessential or unrecognized. To open the Add-ons page, either:

  • Ctrl+Shift+a
  • orange Firefox button (or Tools menu) > Add-ons

In the left column, click Extensions.

Usually a link will appear above at least one disabled extension to restart Firefox. You can complete your work on the tab and click one of the links as the last step.

Hope that prevents your user agent from being changed back to that old version.

more options

FBSMTWB: Fast Browser Search Make The Web Better