Examine source code of Save My Links

{
  "manifest_version": 2,
  "name": "Save My Links",
  "description": "Save and organize your bookmarks with ease",
  "version": "1.1.0",
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "128": "icon-128.png",
    "300": "icon-300.png",
    "1024": "icon-1024.png",
    "2048": "icon-2048.png"
  },
  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "scripting",
    "bookmarks",
    "https://app.savemylinks.io/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "support@savemylinks.io",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "browsingActivity",
          "websiteContent",
          "bookmarksInfo"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "SaveMyLinks",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://app.savemylinks.io/*"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ]
}