Examine source code of ynet improver

{
  "description": "Removes talkbacks to Israeli news websites",
  "manifest_version": 2,
  "name": "ynet improver",
  "version": "1.3",
  "homepage_url": "https://github.com/coypoop/ynet-improver",
  "content_scripts": [
    {
      "matches": [
        "*://*.ynet.co.il/*"
      ],
      "js": [
        "ynet-remove-talkback.js"
      ]
    },
    {
      "matches": [
        "*://rotter.net/*"
      ],
      "js": [
        "rotter-remove-talkback.js"
      ]
    },
    {
      "matches": [
        "*://*.reddit.com/*"
      ],
      "js": [
        "reddit-remove-media.js"
      ]
    },
    {
      "matches": [
        "*://*.hamal.co.il/*"
      ],
      "js": [
        "hamal-remove-talkback.js"
      ]
    },
    {
      "matches": [
        "*://news.walla.co.il/*"
      ],
      "js": [
        "walla-remove-talkback.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b34a5c9f-70d1-43b9-b5ed-52e5e9c8371c}"
    }
  }
}