redux-devtools/extension/firefox/manifest.json

{
  "version": "3.2.4",
  "name": "Redux DevTools",
  "manifest_version": 3,
  "description": "Redux Developer Tools for debugging application state changes.",
  "homepage_url": "https://github.com/reduxjs/redux-devtools",
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@redux.devtools"
    }
  },
  "action": {
    "default_icon": "img/logo/38x38.png",
    "default_title": "Redux DevTools",
    "default_popup": "devpanel.html#popup"
  },
  "commands": {
    "devtools-window": {
      "description": "DevTools window"
    },
    "devtools-remote": {
      "description": "Remote DevTools"
    }
  },
  "icons": {
    "16": "img/logo/16x16.png",
    "48": "img/logo/48x48.png",
    "128": "img/logo/128x128.png"
  },
  "options_ui": {
    "page": "options.html"
  },
  "background": {
    "scripts": ["background.bundle.js"]
  },
  "content_scripts": [
    {
      "matches": ["<all_urls>"],
      "js": ["content.bundle.js"],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": ["<all_urls>"],
      "js": ["page.bundle.js"],
      "run_at": "document_start",
      "all_frames": true,
      "world": "MAIN"
    }
  ],
  "devtools_page": "devtools.html",
  "permissions": ["notifications", "contextMenus", "tabs", "storage"],
  "host_permissions": ["file:///*", "http://*/*", "https://*/*"],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; img-src 'self' data:;"
  }
}