Sogou High Speed Browser Why can't I install a Web page plugin

Sogou high-speed browser version 2.0 new support for the "high-speed mode", can significantly improve the speed of Web Access, a very small number of sites that need to install plug-ins do not have a good support for this mode, you can click the Address bar to the right of the "High speed" button, switch it to "compatible" mode, in the "compatible" mode, Plugin will be installed normally, after you switch, the choice of this switch will be automatically remembered, the next time you visit the same Web page will automatically use "compatible" mode.