manifest.json

{
  "name": "Youtube Playback Speed Control",
  "version": "1.1.4",
  "manifest_version": 2,
  "description": "Control speed of the youtube playback using a keyboard. Press '+' to increase and '-' to decrease the playback speed.",
  "homepage_url": "https://github.com/Toxblh/youtube-speed-control",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": ["tabs", "activeTab", "storage", "webRequest"],
  "options_ui": {
    "page": "src/option/options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": ["src/background.js"]
  },
  "page_action": {
    "default_title": "Control speed of the youtube playback using a keyboard.",
    "default_icon": {
      "19": "icons/icon19.png"
    }
  },
  "content_scripts": [
    {
      "all_frames": true,
      "matches": ["http://www.youtube.com/*", "https://www.youtube.com/*"],
      "css": ["css/inject.css"],
      "js": ["src/inject/inject.js"]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{63eebab4-6bd0-44a0-8d79-7fefb998ebc1}"
    }
  }
}