Examine source code of bmarks

{
  "manifest_version": 2,
  "name": "bmarks",
  "author": "Felipe Cortez",
  "version": "1.3resigned1",
  "description": "Add bookmarks and tab collections to bmarks.net",
  "homepage_url": "https://bmarks.net",
  "permissions": [
    "tabs",
    "activeTab",
    "*://bmarks.net/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://bmarks.net/*"
      ],
      "js": [
        "/content-script.js"
      ]
    }
  ],
  "icons": {
    "24": "icons/icon-24.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "background": {
    "scripts": [
      "background-script.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/icon-24.png",
    "default_title": "bmarks",
    "default_popup": "popup/actions.html"
  },
  "commands": {
    "bookmark-current": {
      "suggested_key": {
        "default": "Alt+Shift+T"
      },
      "description": "This tab"
    },
    "bookmark-all": {
      "suggested_key": {
        "default": "Alt+Shift+W"
      },
      "description": "Window tabs"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c186cf87-def1-4b50-8c26-f132e4e9dff0}"
    }
  }
}