Examine source code of Helping Ourselves

{
  "manifest_version": 2,
  "name": "Helping Ourselves",
  "version": "1.0",
  "description": "A collection of quotes on compassion, showing how helping others benefits ourselves.",
  "permissions": [],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "images/help-logo.png"
    }
  },
  "icons": {
    "128": "images/help-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ec717289-46d9-4d01-a6da-31f2f5404452}"
    }
  }
}