Examine source code of IDLinks

{
  "manifest_version": 2,
  "name": "IDLinks",
  "version": "1.1resigned1",
  "description": "Simple extension for save links",
  "icons": {
    "16": "img/icon16.png",
    "48": "img/icon48.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "img/logo.png"
    },
    "default_title": "IDLinks"
  },
  "permissions": [
    "tabs",
    "http://*/*",
    "https://*/*",
    "contextMenus",
    "notifications",
    "storage",
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "js/content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4f71b246-53de-4e3e-955f-7cf1a1fcf5a7}"
    }
  }
}