Text to Speech (TTS) Firefox

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manifest.json
{
  "version": "1.0.1",
  "manifest_version": 2,
  "short_name": "text-to-speech",
  "name": "__MSG_app_name__",
  "description": "__MSG_app_description__",
  "default_locale": "en",
  "applications": {
    "gecko": {
      "id": "text-to-speech@freebusinessapps",
      "strict_min_version": "42.0"
    }
  },
  "permissions": [
    "storage",
    "https://*.freebusinessapps.net/*",
    "notifications"
  ],
  "background": {
    "page": "lib/chrome/background.html"
  },
  "homepage_url": "https://texttospeech.freebusinessapps.net/",
  "options_ui": {
    "chrome_style": true,
    "page": "data/options/options.html"
  },
  "web_accessible_resources": [
    "data/resources/selection.css",
    "data/content_script/icons/*.png",
    "data/content_script/icons/loading.gif"
  ],
  "browser_action": {
    "default_title": "__MSG_app_name__",
    "default_icon": {
      "16": "data/icons/16.png",
      "32": "data/icons/32.png",
      "48": "data/icons/48.png",
      "64": "data/icons/64.png"
    }
  },
  "content_scripts": [
    {
      "all_frames": false,
      "run_at": "document_start",
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "css": [
        "data/content_script/inject.css"
      ],
      "js": [
        "data/content_script/resources/getboundingbox.js",
        "data/content_script/resources/config.js",
        "data/content_script/inject.js",
        "data/resources/audio.js",
        "data/resources/tts.js"
      ]
    }
  ],
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png"
  }
}

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