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manifest.json

{
  "manifest_version": 3,
  "name": "Tab Memory Saver",
  "version": "1.0",
  "description": "Save memory while keeping many tabs open. Tabs flushed out of memory show a grey indicator, while active tabs remain green.",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "contextMenus",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "service_worker": "background.js",
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "edge": {
      "minimum_edge_version": "88"
    }
  },
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}