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Mozilla Firefox upgrade taken offline due to security vulnerability

  • The latest version of Mozilla's Firefox browser has been taken offline following the discovery of a security vulnerability.

    Users who had upgraded to version 16 have been advised to downgrade to the previous release until developers released a fix.

    The vulnerability enables "a malicious site to potentially determine which websites users have visited", Mozilla said.

    The non-profit firm added that only a "limited number of users are affected".

    Firefox is one of the three leading web browsers, with more than 450 million global users.