Examine source code of MEM1 TOTE Destinations

{
  "manifest_version": 2,
  "name": "MEM1 TOTE Destinations",
  "version": "1.0",
  "description": "Displays a .png image on the right side of the screen.",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Toggle Image",
    "default_width": 500,
    "default_height": 277
  },
  "icons": {
    "48": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "contentScript.js"
      ],
      "css": [
        "contentStyle.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0a3dc510-c42a-4544-aee5-d9fe986b576e}"
    }
  }
}