skairunner/findAndReplace.js

## findAndReplace.js
"use strict";

var links = document.querySelectorAll("a");

for (let link of links) {
	let parent = link.parentElement;
	let newel = document.createElement("span");
	newel.innerHTML = link.innerHTML;
	parent.replaceChild(newel, link);

	chrome.runtime.sendMessage({
		link: newel.getAttribute("href"),
		text: newel.innerHTML
	});
}

## manifest.json
{
  "manifest_version": 2,

  "name": "Link Remover",
  "description": "Removes all links from page.",
  "version": "1.0",

  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "activeTab"
  ]
}

## popup.html
<!doctype html>
<!--
 This page is shown when the extension button is clicked, because the
 "browser_action" field in manifest.json contains the "default_popup" key with
 value "popup.html".
 -->
<html>
  <head>
    <title>Getting Started Extension's Popup</title>
    <style type="text/css">
      button {
        font-size: 14;
        width: 100pt;
        height:20pt;
      }
      .result {
        display: block;
        font-size: 14;
        line-height: 1.5;
      }
    </style>

    <!--
      - JavaScript and HTML must be in separate files: see our Content Security
      - Policy documentation[1] for details and explanation.
      -
      - [1]: https://developer.chrome.com/extensions/contentSecurityPolicy
    -->
    <script src="popup.js"></script>
  </head>

  <body>
    <button>Remove links</button>
    <div id="All Links"></div>
  </body>
</html>

## popup.js
document.addEventListener('DOMContentLoaded', () => {
    let outputDiv = document.querySelector("div");

    // listen for messages from the child
    chrome.runtime.onMessage.addListener(
        // request: the content of the message
        // sender: which tab sent the message
        // sendResponse: an optional callback to respond to the message
        function(request, sender, sendResponse) {
          let child = document.createElement("a");
          child.innerHTML = request.text;
          child.className = "result";
          child.setAttribute("href", request.link);
          outputDiv.appendChild(child);
    });


    // on click
    document.querySelector("button").addEventListener("click", () => {
        // runs the given script in the active tab
        chrome.tabs.executeScript({
            file: "findAndReplace.js"
        }, () => { // throws errors instead of silencing them
            if (chrome.runtime.lastError) {
                console.error(chrome.runtime.lastError.message);
            }
        });
    })
});
	"use strict";

	var links = document.querySelectorAll("a");

	for (let link of links) {
	let parent = link.parentElement;
	let newel = document.createElement("span");
	newel.innerHTML = link.innerHTML;
	parent.replaceChild(newel, link);

	chrome.runtime.sendMessage({
	link: newel.getAttribute("href"),
	text: newel.innerHTML
	});
	}
	{
	"manifest_version": 2,

	"name": "Link Remover",
	"description": "Removes all links from page.",
	"version": "1.0",

	"browser_action": {
	"default_icon": "icon.png",
	"default_popup": "popup.html"
	},
	"permissions": [
	"activeTab"
	]
	}