Examine source code of Deepseek Sidebar

{
  "manifest_version": 2,
  "name": "Deepseek",
  "version": "1.2.1",
  "description": "Sidebar button to open your chosen URL. Includes header rewrite so Deepseek loads in the sidebar. Now with icons.",
  "applications": {
    "gecko": {
      "id": "deepseek-sidebar@example.com",
      "strict_min_version": "106.0"
    }
  },
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png"
  },
  "sidebar_action": {
    "default_title": "Deepseek",
    "default_panel": "sidebar.html",
    "open_at_install": true
  },
  "browser_action": {
    "default_title": "Deepseek",
    "default_icon": {
      "16": "icons/icon16.png",
      "19": "icons/icon19.png",
      "32": "icons/icon32.png",
      "38": "icons/icon38.png",
      "48": "icons/icon48.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  }
}