Examine source code of Prixou - Achetez au bon moment

{
  "manifest_version": 2,
  "name": "Prixou - Achetez au bon moment",
  "description": "Suivez et analysez les prix Amazon en temps réel. Visualisez l'historique des prix et obtenez des recommandations d'achat.",
  "version": "0.17.0",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png"
  },
  "permissions": [
    "https://*.prixou.fr/*",
    "https://*.amazon.fr/*",
    "https://*.cdiscount.com/*",
    "https://*.fnac.com/*",
    "https://*.darty.com/*",
    "https://*.rueducommerce.fr/*",
    "https://*.boulanger.com/*",
    "https://*.rakuten.com/*",
    "https://*.ldlc.com/*",
    "https://*.materiel.net/*",
    "https://*.topachat.com/*",
    "https://*.grosbill.com/*",
    "https://*.cybertek.fr/*",
    "https://*.leclerc/*",
    "https://*.auchan.fr/*",
    "https://*.carrefour.fr/*",
    "https://*.zalando.fr/*",
    "https://*.asos.com/*",
    "https://*.sephora.fr/*",
    "https://*.nocibe.fr/*",
    "https://*.marionnaud.fr/*",
    "https://*.decathlon.fr/*",
    "https://*.go-sport.com/*",
    "https://*.intersport.fr/*",
    "https://*.leroymerlin.fr/*",
    "https://*.castorama.fr/*",
    "https://*.bricomarche.com/*",
    "https://*.bricodepot.fr/*",
    "https://*.but.fr/*",
    "https://*.conforama.fr/*",
    "https://*.ikea.com/*",
    "https://*.maisonsdumonde.com/*",
    "https://*.backmarket.fr/*",
    "https://*.manomano.fr/*",
    "https://*.ubaldi.com/*",
    "https://*.pixmania.com/*",
    "https://*.mistergooddeal.com/*",
    "https://*.conrad.fr/*",
    "https://*.cultura.com/*",
    "https://*.micromania.fr/*",
    "https://*.laboutiqueofficielle.com/*",
    "https://*.spartoo.com/*",
    "https://*.sarenza.com/*",
    "https://*.galerieslafayette.com/*",
    "https://*.printemps.com/*",
    "https://*.laredoute.fr/*",
    "https://*.thomann.de/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.amazon.fr/*"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "content-scripts/content.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{54830e45-f3bc-48e8-b6b3-bba9d11cd40a}"
    }
  }
}