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How can I view and change what browser and OS identity information that are sent by Firefox?

NOTE I've tagged both 10.10 and 11.04 because I want to know how to do so from both of the Ubuntu releases.

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up vote 2 down vote accepted

In Firefox, open the about:config page and search for useragent. You'll be presented with options to change the different parts that make up a user-agent string:

enter image description here

You can also use an extension like User Agent Switcher, which makes it easy to save a couple and switch between them.

Both of these methods work in Firefox 3.6 (10.10) and 4.0 (11.04).

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Is this useragent thing the same as HTTP referrers? – Oxwivi Mar 31 '11 at 19:02
    
By the way, edit the add on link to the English page. – Oxwivi Mar 31 '11 at 19:07
    
Oops, thanks. :) No, the referrer is the page you came from, the user-agent is a string that identifies your browser. – Stefano Palazzo Mar 31 '11 at 19:33
    
Thanks for the clarification. So what can we do about HTTP referrers? – Oxwivi Apr 1 '11 at 6:54
    
Unlike the screen shot in your answer, only two lines of useragent description appears for me. Even on Windows. But according to a third-party useragent reader, the info includes OS and other info. And is there anyway to keep the entire useragent streak blank/empty? – Oxwivi May 2 '11 at 15:42

Another way to view this data is to visit a website like whatsmyuseragent.com from within Firefox (or any other browser).

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We just need to somehow manipulate the useragent of the browser in order to hide our identity. Various plugins are available in the market to do soo.

  • Just search for User-Agent Switcher Add-on on Firefox market in order to change it on your Firefox browser.
  • Search for Random (Hide) User-Agent on Chrome for fixing the issue on Google Chrome.

Hope this helps. Regards, Riya Taneja, CEO: Games for My PC, Apps for My PC

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