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Getting this message for a theme: "This add-on requires Firefox 3.6.*. You are currently using Firefox 1.5.0.8."

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  • Last reply by Helper7677

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Message for a theme: "This add-on requires Firefox 3.6.*. You are currently using Firefox 1.5.0.8." I have installed 3.6.8 several times. Updates show successful installation of 3.6. Can't use add ons because still says i am using wrong version I get this message on YouTube too - that my browser does not support this website and I need updated version of firefox Looked at update history - successful installations of 3.6 and security updates for higher versions

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Hi,

Something you installed has changed your browser user agent to report an old version.

You'll need to reset this as described here: Websites say that Firefox is outdated or incompatible even though it's the latest version

  1. In the Location bar, type about:config and press Enter.
  2. The about:config "This might void your warranty!" warning page may appear. Click I'll be careful, I promise!, to continue to the about:config page.
  3. Search for useragent by typing it into the Filter field.
  4. Right-click on each of the three preferences listed below and select Reset from the context menu.
   general.useragent.extra.firefox
   general.useragent.locale
   general.useragent.security 
  1. If they exist, you may also need to reset:
   general.useragent.extra.productName - where productName can be the name of some third party software (e.g. microsoftdotnet).
   general.useragent.override 
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You have an item installed that is considered malware/spyware/adware, "My Web Search Plugin Stub".

  1. You can check if you have any of these from Web Products" installed:
  2. You MAY need to change a preference to reset your default URL/location bar search provider:
    • Enter about:config in the address/URL bar and press the Enter key
    • If you see a warning, accept it (Promise that you will be careful)
    • Filter = keyword.URL
    • Below the Filter, if keyword.URL is bold, right-click on keyword.URL and choose "Reset"
    • Restart Firefox (File > Restart Firefox)
  3. You MAY need to reset your homepage. Firefox can open multiple home pages. Home pages are separated by the "|" symbol.

Update Java

  1. You can check your version: http://www.mozilla.com/en-US/plugincheck/
    • Note: plugin check page does not have information on all plugin versions

See: https://support.mozilla.com/en-US/kb/Using+the+Java+plugin+with+Firefox#Installing_or_updating_Java


Update Shockwave Flash (Adobe Flash). A new version was released last week.

  1. You can check your version: http://www.mozilla.com/en-US/plugincheck/
    • Note: plugin check page does not have information on all plugin versions
  2. Use Firefox to Download and SAVE to your hard drive (link in article below)
  3. After download completes, close Firefox
  4. Click on the file you just downloaded and install
  5. After installation, restart Firefox and check your version again.

Download link and other information: https://support.mozilla.com/en-US/kb/Managing+the+Flash+plugin#Updating_Flash