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Why do all browsers' user agents start with "Mozilla/"?

Asked 2009-07-11T17:42:22.493
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All popular browsers' user agent strings, even Internet Explorer's, start with Mozilla/. Why is this the case?

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I think it had to do with: http://en.wikipedia.org/wiki/User_agent#User_agent_spoofing

Back in the early days, Netscape (code named Mozilla) was the main rival of IE, and they wanted to prevent being rejected by sites rejecting browsers other than Netscape.

answered 2009-07-11T17:44:27.840

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