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浏览器扩展开发 
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扩展安装位置
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#. 扩展被默认安装到的目录是(Win中)
    + Firefox
        .. code-block:: guess

            c:\Documents and Setttings\${user name}\Application Data\Mozilla\Firefox\Profiles\xxxx.default\extensions

    + Chrome
        .. code-block:: guess
            
            c:\Documents and Settings\${user name}\Local Settings\Application Data\Google\Chrome\User Data\Default\Extensions