（1）安装SideBarEnhancements插件（用sublime的应该都知道）
（2）安装好以后点击工具栏的 preferences > package setting > side bar > Key Building-User键入以下代码
[
{ "keys": ["f1"],
"command": "side_bar_files_open_with",
"args": { "paths": [], "application": "C:/Program Files/Internet Explorer/iexplore.exe", "extensions": ".*" }
},
{ "keys": ["f2"],
"command": "side_bar_files_open_with",
"args": { "paths": [],"application": "C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe","extensions": ".*" }
},
{ "keys": ["f3"],
"command": "side_bar_files_open_with",
"args": { "paths": [], "application": "D:\\安装地\\浏览器\\firefox\\firefox.exe", "extensions": ".*" }
}
]
（3）说明: 注意自己浏览器的安装位置就ok了
原文：http://www.cnblogs.com/it-xiaojun/p/6129027.html