Examine source code of jsproxy-extension

{
  "manifest_version": 2,
  "author": "JimmyTinsley",
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "1.2",
  "homepage_url": "https://github.com/JimmyTinsley/jsproxy-firefox-extension",
  "default_locale": "en",
  "applications": {
    "gecko": {
      "id": "jsproxy-extension@jimmytinsley.com",
      "strict_min_version": "59.0"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "menus",
    "activeTab",
    "storage",
    "tabs"
  ],
  "icons": {
    "16": "icons/page-16.png",
    "32": "icons/page-32.png",
    "48": "icons/page-48.png"
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_action": {
    "default_title": "jsproxy-firefox-extension"
  },
  "page_action": {
    "browser_style": true,
    "default_icon": {
      "16": "icons/page-16.png",
      "32": "icons/page-32.png"
    },
    "default_title": "__MSG_pageAction__",
    "show_matches": [
      "<all_urls>"
    ]
  }
}