Can we set browser's proxy programatically?

Question

can we set proxy of browser programically I am talking about IE. lets say i press a button and proxy is set and browser is opened then i press button 2 different proxy is set and new browser is opened. here keeping in mind i want something like both opened browsers work on different proxies

like

Browser1->users->PROXY A

Browser2 ->uses->PROXY B

Answer 1

Nope. IE uses the standard WinInet proxy configuration, so whatever is configured applies to all IE instances.

It is possible though to open two different applications that host instances of the IE WebControl and configure those for different proxys.

Answer 2

firefox使用它自己的设置，可以为每个配置文件设置代理，也可以使用foxyproxy之类的东西（搜索firefox插件）