Examine source code of Ecolist

{
  "description": "Ecolist changes your tabs into an eco tip everytime you open one. Find full lists here: https://github.com/benbyford/ecolist_data",
  "manifest_version": 2,
  "name": "Ecolist",
  "version": "1.0.2",
  "homepage_url": "https://www.benbyford.com",
  "icons": {
    "48": "icons/ecolist.png",
    "96": "icons/ecolist@2x.png",
    "144": "icons/ecolist@3x.png"
  },
  "chrome_url_overrides": {
    "newtab": "newTab.html"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "hello@benbyford.com",
      "strict_min_version": "42.0"
    }
  }
}