Firefox browser Chinese settings in Ubuntu

The first method: through the Linux command to achieve.

    This method is relatively simple, just enter the command directly. The command is:

        sudo apt-get install firefox-locale-zh-hans

    Restart the browser

The second method:
    
    Firefox browser input address: http://ftp.mozilla.org
        Select the directory and language in turn according to the URL given below The package is in the xpi directory, Simplified Chinese (zh-CN.xpi)/Traditional Chinese (zh-TW.xpi)
        32-bit system directory: http://ftp.mozilla.org/pub/firefox/releases/50.1.0/linux -i686/xpi/
        64-bit system directory: http://ftp.mozilla.org/pub/firefox/releases/50.1.0/linux-x86_64/xpi/
            32-bit system directory: http://ftp.mozilla.org /pub/firefox/releases/50.1.0/linux-i686/xpi/zh-CN.xpi
            64-bit system directory: http://ftp.mozilla.org/pub/firefox/releases/50.1.0/linux-x86_64 /xpi/zh-CN.xpi
                where
                    50.1.0 is the browser version, check it in about in the browser help options
                    The corresponding system bits of linux-x86_64 and linux-i686 (32-bit: linux-i686, 64: linux-x86_64)
                    zh-CN.xpi is a Chinese package, click install