Get rid of those pesky GA parameters from your URL bar!

remove-ga-params.user.js

// ==UserScript==
// @name         Remove GA parameters
// @namespace    http://bcjordan.com
// @version      0.1
// @description  Get rid of those pesky GA parameters!
// @author       You
// @match      *://*/*
// @grant        none
// ==/UserScript==

// To install:
// 1. Install TamperMonkey https://chrome.google.com/webstore/detail/tampermonkey/dhdgffkkebhmkfjojejmpbldmpobfkfo
// 2. Click "Raw" above.

(function() {
    'use strict';

    const loc = window.location;
    if (loc.search.includes('utm')) {
        if (window.history.replaceState) {
            history.replaceState({}, '', loc.pathname);
        } else {
            loc.hash = '';
        }
    }
})();