.xpi
文件类型：Mozilla Installer Package
扩展名为.xpi的文件是一个压缩文件。文件说明：
Compressed installation archive that contains the main components installed with Firefox and Mozilla Web browsers; installed by Mozilla installer script; also used for installing Web browser extensions.XPI files may often be installed by simply dragging and dropping the file onto an open Web browser window..xpi
打开.xpi文件
Mac OS
XPInstall (included with Mozilla or Firefox)Windows
XPInstall (included with Mozilla or Firefox)Linux
其它内容
来源：. xpi文件