Tracker Jacker

background.js

const BLOCK_ME = "://www.facebook.com/tr/";

chrome.webRequest.onBeforeRequest.addListener(
  function(r) {
    return {
      cancel: r.url.indexOf(BLOCK_ME) != -1
    };
  },
  {urls: ["<all_urls>"]},
  ["blocking"]
);

manifest.json

{
  "version": "1.0.1",
  "name": "Tracker Jacker",
  "description": "Quit sending data back to Facebook every time you touch a page with their third-party JavaScript onboard.",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "*://*/*"
  ],
  "background": {
     "scripts": ["background.js" ]
  },
  "icons": {
     "16": "icon_16.png",
     "48": "icon_48.png",
     "128": "icon_128.png"
  },
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "manifest_version": 2
}

Icons are in the previous comment; stolen from The Noun Project, here:

https://thenounproject.com/term/wasp/902714/

Why the heck GitHub lets you drag an image into a comment but not the gist itself is beyond me.

Now up on the Chrome Web Store, here:

https://chrome.google.com/webstore/detail/fidaihianbfhklachngadhjhlnbldhjm/