Examine source code of Browser Switch!

{
  "manifest_version": 2,
  "name": "Browser Switch!",
  "version": "1.0",
  "description": "Allows you to open the current active tab in firefox or chrome.\nRequires the BrowserSwitcher Utility to be installed(https://github.com/Cr4fter/BrowserSwitcher).",
  "homepage_url": "https://github.com/Cr4fter/BrowserSwitcherAddon",
  "icons": {
    "64": "icons/BrowserSwitchLogo.png"
  },
  "permissions": [
    "bookmarks",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icons/firefox.svg",
    "default_title": "Open in Other Browser!(Ctrl+Q)"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "toggle-feature": {
      "suggested_key": {
        "default": "Ctrl+Q"
      },
      "description": "Short Cut to quickly change browser."
    }
  }
}