Examine source code of Loaded Tabs Limiter

{
  "manifest_version": 3,
  "name": "Loaded Tabs Limiter",
  "version": "2026.7.7",
  "description": "Limits the number of loaded tabs, unloading the oldest ones when the limit is reached.",
  "browser_specific_settings": {
    "gecko": {
      "id": "@loaded-tabs-limiter.shajirr",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "tabs",
    "storage",
    "sessions",
    "contextMenus",
    "alarms"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_icon": "icon.svg",
    "default_title": "Loaded Tabs Limiter",
    "default_area": "navbar",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "options.html"
  },
  "commands": {
    "discard-tab": {
      "description": "Discard current tab"
    },
    "discard-tab-group": {
      "description": "Discard other tabs in current group"
    },
    "discard-tab-container": {
      "description": "Discard other tabs in current container"
    },
    "discard-other-in-window": {
      "description": "Discard other tabs in this window"
    },
    "discard-other-windows": {
      "description": "Discard tabs in other windows"
    },
    "discard-all-other": {
      "description": "Discard all other tabs"
    }
  },
  "icons": {
    "24": "icon.svg",
    "32": "icon.svg",
    "48": "icon.svg"
  }
}