Messenger Message Cleaner

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Messenger Message Cleaner",
  "short_name": "Messenger Message cleaner",
  "description": "Delete All Messages for Facebook™ (from desktop & smartphone)",
  "version": "2.3.1.2",
  "icons": {
    "16": "icons/fb_message_cleaner16.png",
    "48": "icons/fb_message_cleaner48.png",
    "128": "icons/fb_message_cleaner128.png"
  },
  "browser_action": {
    "default_icon": "icons/fb_message_cleaner16.png",
    "default_title": "Message Cleaner",
    "default_popup": "screens/popup.html"
  },
  "background": {
    "scripts": [
      "js/constants.min.js",
      "js/background.js",
      "js/utils.min.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.facebook.com/*",
        "https://facebook.com/*",
        "http://facebook.com/*",
        "https://m.facebook.com/*",
        "http://www.facebook.com/*",
        "http://m.facebook.com/*",
        "http://mbasic.facebook.com/*",
        "https://mbasic.facebook.com/*"
      ],
      "js": [
        "js/constants.min.js",
        "js/utils.min.js",
        "js/userinfo.min.js",
        "js/content.min.js",
        "js/analytics.min.js"
      ]
    },
    {
      "all_frames": true,
      "js": [
        "js/inject_end.js",
        "js/ad.js"
      ],
      "matches": [
        "https://www.facebook.com/*",
        "https://facebook.com/*",
        "http://facebook.com/*",
        "https://m.facebook.com/*",
        "http://www.facebook.com/*",
        "http://m.facebook.com/*",
        "http://mbasic.facebook.com/*",
        "https://mbasic.facebook.com/*"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "tabs",
    "storage",
    "https://www.facebook.com/*",
    "https://www.fbmessagecleaner.com/*",
    "https://facebook.com/*",
    "http://facebook.com/*",
    "https://m.facebook.com/*",
    "http://www.facebook.com/*",
    "http://m.facebook.com/*",
    "http://mbasic.facebook.com/*",
    "https://mbasic.facebook.com/*"
  ],
  "web_accessible_resources": [
    "screens/fb_cleaner.html",
    "screens/index.html",
    "img/analyze.png",
    "img/brush.png",
    "img/ad.gif"
  ],
  "content_security_policy": "script-src 'self' https://ssl.google-analytics.com; object-src 'self'"
}