Examine source code of Drop Links

{
  "author": "Frank Schwidom",
  "description": "Drops all links by removing the href attribute and disables buttons. It does not work on all websites, especially those that are mainly implemented via JavaScript, but on many sides the Addon offers the opportunity to protect themselves from accidental clicks, especially when selecting text. The certainty of being protected from accidental clicks is helpful for stress reduction. If you want to have the links again, you just have to reload the page. It works without conflict with NoScript and similar addons.",
  "manifest_version": 2,
  "name": "Drop Links",
  "version": "1.1",
  "icons": {
    "48": "icons/48.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/48.png",
    "default_title": "Drop Links",
    "default_popup": "popup/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9cab6242-70f2-4a43-8e1e-6b5a4c30acc0}"
    }
  }
}