论浏览器如何保持用户的粘性

  As you konw ,Browser will become next entrence of Internet.So  Many company  put into majority of Human power and money to build a Nice Browser.As we konw,There is some famous browser,Such like IE,Chrome,FireFox,Opera.but How can browser keep user viscosity?

  *provide save your password and username function.

  *sync Bookmark function

  *provide a lot of  plug-in

  *fast render speed and Friendly User Interface(Let user focus on Content)