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I have upgraded to 8.0 and the version number comes up correct except in most sites it says I'm running 3.5.6?? I have continually upgraded and don't know how to make websites see the upgrade.

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Everytime there is an upgrade I install it. My browser says I'm using 8.0 and that my browser is up-to-date. However, when I try to install Firebug for 8.0 or any other add on it says I'm using 3.5.6. Even gmail is saying that my browser is out dated! How can I get my browser to be truly updated??

Everytime there is an upgrade I install it. My browser says I'm using 8.0 and that my browser is up-to-date. However, when I try to install Firebug for 8.0 or any other add on it says I'm using 3.5.6. Even gmail is saying that my browser is out dated! How can I get my browser to be truly updated??

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Remove Firefox completely first, remove Program Files-Mozilla Firefox older also because its needed

install and try

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Your UserAgent string in Firefox is messed up by another program that you installed.
http://en.wikipedia.org/wiki/User_Agent

type about:config in the URL bar and hit Enter
If you see the warning, you can confirm that you want to access that page.
Filter = general.useragent.
Right-click the preferences that are bold, one line at a time, and select Reset.
Then restart Firefox