v1.7.3/firefox support

app/src/Chat.js

@@ -9,7 +9,9 @@ ALL CONTENT ON WATCH PARTY'S WEBSITE OR IN WATCH PARTY'S CHROME EXTENSION APP, U
 CITED ARE THE SOLE INTELLECTUAL PROPERTY OF AYUSHYA AMITABH, AND MAY NOT BE
 COPIED, EDITED, OR REPRODUCED WITHOUT PERMISSION.
 ************************************************************************/
-/*global chrome */
+/*global chrome*/
+/*global browser*/
+
 import React, { Component } from 'react';
 import {
   Typography,
@@ -73,6 +75,8 @@ import CallManager from './CallManager';
 import VideoListener from './VideoListener';
 import ReactGiphySearchbox from 'react-giphy-searchbox';
 
+let CHROME_OR_BROWSER = chrome || browser;
+
 export default class Chat extends Component {
   constructor(props) {
     super(props);
@@ -161,7 +165,7 @@ export default class Chat extends Component {
     this.mVideoListener.start();
 
     // CHROME FIREBASE FIRESTORE LISTENER
-    this.port = chrome.runtime.connect({ name: LocalData().partyName });
+    this.port = CHROME_OR_BROWSER.runtime.connect({ name: LocalData().partyName });
     // Initialize listener
     this.port.postMessage({
       type: 'INIT',