diff --git a/src/drivers/npm/package.json b/src/drivers/npm/package.json
index e18f57dd7..7e36ff01e 100644
--- a/src/drivers/npm/package.json
+++ b/src/drivers/npm/package.json
@@ -2,7 +2,7 @@
   "name": "Wappalyzer",
   "description": "Uncovers the technologies used on websites",
   "homepage": "https://github.com/AliasIO/Wappalyzer",
-  "version": "4.1.3",
+  "version": "4.1.4",
   "author": "Elbert Alias",
   "license": "GPL-3.0",
   "repository": {
diff --git a/src/drivers/webextension/js/driver.js b/src/drivers/webextension/js/driver.js
index 8cf460772..ab2ceda7c 100644
--- a/src/drivers/webextension/js/driver.js
+++ b/src/drivers/webextension/js/driver.js
@@ -33,9 +33,17 @@
 		 * Get a value from localStorage
 		 */
 		getOption: function(name, defaultValue, callback) {
-			browser.storage.local.get(name).then(function(item) {
+			var func = function(item) {
 				callback(item.hasOwnProperty(name) ? item[name] : defaultValue);
-			});
+			};
+
+			try {
+				// Chrome, Firefox
+				browser.storage.local.get(name).then(func);
+			} catch ( e ) {
+				// Edge
+				browser.storage.local.get(name, func);
+			}
 		},
 
 		/**
diff --git a/src/drivers/webextension/js/i18n.js b/src/drivers/webextension/js/i18n.js
index 6921c0f0f..aa62fcee2 100644
--- a/src/drivers/webextension/js/i18n.js
+++ b/src/drivers/webextension/js/i18n.js
@@ -3,7 +3,7 @@
 document.addEventListener('DOMContentLoaded', function() {
 	var nodes = document.querySelectorAll('[data-i18n]');
 
-	nodes.forEach(function(node) {
+	Array.prototype.forEach.call(nodes, function (node) {
 		node.childNodes[0].nodeValue = browser.i18n.getMessage(node.dataset.i18n);
 	});
 });
diff --git a/src/drivers/webextension/js/popup.js b/src/drivers/webextension/js/popup.js
index 37f642e62..578670f54 100644
--- a/src/drivers/webextension/js/popup.js
+++ b/src/drivers/webextension/js/popup.js
@@ -6,7 +6,7 @@
 		init: function() {
 			popup.update([ 'p', {}, ' ' ], document, {});
 
-			var callback = function(tabs) {
+			var func = function(tabs) {
 				( chrome || browser ).runtime.sendMessage({ id: 'get_apps', tab: tabs[0], source: 'popup.js' }, function(response) {
 					popup.update(popup.appsToDomTemplate(response));
 				});
@@ -14,15 +14,15 @@
 
 			try {
 				// Chrome, Firefox
-				browser.tabs.query({ active: true, currentWindow: true }).then(callback);
+				browser.tabs.query({ active: true, currentWindow: true }).then(func);
 			} catch ( e ) {
 				// Edge
-				browser.tabs.query({ active: true, currentWindow: true }, callback);
+				browser.tabs.query({ active: true, currentWindow: true }, func);
 			}
 		},
 
 		update: function(dom) {
-			if ( /complete|interacrive|loaded/.test(document.readyState) ) {
+			if ( /complete|interactive|loaded/.test(document.readyState) ) {
 				popup.replaceDom(dom);
 			} else {
 				document.addEventListener('DOMContentLoaded', function() {
@@ -38,7 +38,7 @@
 				body.removeChild(body.firstChild);
 			}
 
-			body.append(jsonToDOM(domTemplate, document, {}));
+			body.appendChild(jsonToDOM(domTemplate, document, {}));
 		},
 
 		appsToDomTemplate: function(response) {
diff --git a/src/drivers/webextension/manifest.edge.json b/src/drivers/webextension/manifest.edge.json
index 8c0b80db3..bc71f3b2d 100644
--- a/src/drivers/webextension/manifest.edge.json
+++ b/src/drivers/webextension/manifest.edge.json
@@ -4,7 +4,7 @@
 	"author": "Elbert Alias",
 	"homepage_url": "https://wappalyzer.com/",
 	"description": "Identify web technologies",
-	"version": "4.1.3",
+	"version": "4.1.4",
 	"default_locale": "en",
 	"manifest_version": 2,
 	"icons": {
diff --git a/src/drivers/webextension/manifest.json b/src/drivers/webextension/manifest.json
index a2cdd6479..7e140bcda 100644
--- a/src/drivers/webextension/manifest.json
+++ b/src/drivers/webextension/manifest.json
@@ -4,7 +4,7 @@
 	"author": "Elbert Alias",
 	"homepage_url": "https://wappalyzer.com/",
 	"description": "Identify web technologies",
-	"version": "4.1.3",
+	"version": "4.1.4",
 	"default_locale": "en",
 	"manifest_version": 2,
 	"icons": {