Examine source code of Snippet Manager

{
  "manifest_version": 3,
  "name": "Snippet Manager",
  "version": "1.1.0",
  "description": "Fast snippets, slash triggers, interactive forms and clipboard history — built for IT support. Local-first, no account required.",
  "browser_specific_settings": {
    "gecko": {
      "id": "snippet-manager@itsupport.local",
      "//min": "140 is the declared desktop minimum for this build.",
      "strict_min_version": "140.0",
      "//data": "No developer-operated collection. Optional user-configured HTTPS JSON lookup refreshes are described in store/PRIVACY.md.",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "contextMenus",
    "clipboardWrite"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "omnibox": {
    "keyword": "sn"
  },
  "//": "Firefox has no service_worker key — MV3 background pages use scripts.",
  "background": {
    "scripts": [
      "src/background/service-worker.js"
    ],
    "type": "module"
  },
  "action": {
    "default_popup": "src/popup/popup.html",
    "default_title": "Snippet Manager",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "options_ui": {
    "page": "src/options/options.html",
    "open_in_tab": true
  },
  "//sidebar": "Firefox's equivalent of Chrome's side_panel.",
  "sidebar_action": {
    "default_panel": "src/sidepanel/sidepanel.html",
    "default_title": "Snippets",
    "default_icon": {
      "32": "icons/icon-32.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/content/content.bundle.js"
      ],
      "run_at": "document_idle",
      "all_frames": true,
      "match_about_blank": false
    }
  ],
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+S",
        "mac": "Command+Shift+S"
      },
      "description": "Open the snippet search popup"
    },
    "open-palette": {
      "suggested_key": {
        "default": "Ctrl+Shift+P",
        "mac": "Command+Shift+P"
      },
      "description": "Open the command palette on the page"
    },
    "open-clipboard": {
      "suggested_key": {
        "default": "Ctrl+Shift+V",
        "mac": "Command+Shift+V"
      },
      "description": "Open clipboard history on the page"
    }
  }
}