wine-gecko2.21 2.21-0ubuntu1 (amd64 binary) in ubuntu trusty

 Wine is a compatibility layer for running Windows applications on Linux.
 Applications are run at full speed without the need of cpu emulation. Wine
 does not require Microsoft Windows, however it can use native system dll
 files in place of its own if they are available.
 .
 This package includes the Gecko rendering engine from the Mozilla project for
 displaying embedded web pages in Wine applications.