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

Updated to Ver.8.0.1 Firefox recognizes it as such under the About menu but when I try to install a AddOn, (Which supports Ver. 8.0.1), the AddOn recognizes the Ver. as 3.5.7

  • 3 replies
  • 3 have this problem
  • 1 view
  • Last reply by James

more options

Updated Firefox to Ver.8.0.1 ,Firefox recognizes it as such under the Help/About menu. When I tried to install a AddOn, (Which supports Ver. 8.0.1), the AddOn recognizes the Firefox Ver. as 3.5.7 Furthermore I just noticed on this page down below where it says you have made an educated guess about my browser and O/S. This page also recognizes the Firefox Ver. as 3.5.7 So I go to the help/About menu and it says I'm running Ver.8.0.1 Am I missing something?

Updated Firefox to Ver.8.0.1 ,Firefox recognizes it as such under the Help/About menu. When I tried to install a AddOn, (Which supports Ver. 8.0.1), the AddOn recognizes the Firefox Ver. as 3.5.7 Furthermore I just noticed on this page down below where it says you have made an educated guess about my browser and O/S. This page also recognizes the Firefox Ver. as 3.5.7 So I go to the help/About menu and it says I'm running Ver.8.0.1 Am I missing something?

Chosen solution

Any useragent Preferences that are bold and user set, just right-click each and select Reset. Then go to "File->Exit" and start Firefox again.

Read this answer in context 👍 0

All Replies (3)

more options
more options

Hello and Thank You for the reply. I did part of your solution but decided to ask you before I continued. I only had 2 of 5 user agents you spoke of. Not sure if this is part of the problem. I've listed them down below.

Preference Name/ Status/ Type / Value

-general.useragent.compatMode.firefox/ Default/ boolean/ false -general.useragent.extra.microsoftdotnet/ userset/ string/ (.NET - CLR 3.5.30729) -general.useragent.extra.searchtoolbar/ userset/ string/ Search- Toolbar/1.2 -general.useragent.locale/ default/ string/ en-US

-general.useragent.override/ userset/ string/ Mozilla/5.0-

(Windows; U; Windows NT 5.1; en-US; rv:1.9.1.7)Gecko/20091221Firefox/3.5.7
more options

Chosen Solution

Any useragent Preferences that are bold and user set, just right-click each and select Reset. Then go to "File->Exit" and start Firefox again.