1、首先 ctrl+shift+P  選 Package Control: Install Package 找   SideBarEnhancements 。如果 沒安裝 Install Package 先安裝

2點開 Key Bindings -User 加入下面程式碼

[
	{
        "keys": ["Alt+f2"],
        "command": "side_bar_files_open_with",
        "args": {
            "paths": [],
            "application": "C:\\Program Files (x86)\\Chrome\\chrome.exe",
            "extensions": ".*"
        }
    }
]
 

3 記得把地址改成你自己的瀏覽器地址