diff --git a/README.md b/README.md
index de138c6c1..ac4e274b4 100644
--- a/README.md
+++ b/README.md
@@ -87,7 +87,7 @@ want to port Wappalyzer to a new platform.
 **PHP**
 
 The PHP driver requires the [V8js](http://php.net/manual/en/book.v8js.php) class. Installing V8js 
-using PECL on Debian Linux or Ubuntu should be very straight forward:
+using [PECL](http://pecl.php.net/) on Debian Linux or Ubuntu should be very straight forward:
 
 * `# aptitude install php5-dev php-pear libv8-dev`
 * `# pecl install channel://pecl.php.net/v8js-0.1.3`
diff --git a/drivers/bookmarklet/images/icons/Ruby on Rails.png b/drivers/bookmarklet/images/icons/Ruby on Rails.png
new file mode 100644
index 000000000..ca0ca559a
Binary files /dev/null and b/drivers/bookmarklet/images/icons/Ruby on Rails.png differ
diff --git a/drivers/chrome/images/icons/Ruby on Rails.png b/drivers/chrome/images/icons/Ruby on Rails.png
new file mode 100644
index 000000000..ca0ca559a
Binary files /dev/null and b/drivers/chrome/images/icons/Ruby on Rails.png differ
diff --git a/drivers/firefox/content/js/content.js b/drivers/firefox/content/js/content.js
index a1c10a3e9..7f8bc44dc 100644
--- a/drivers/firefox/content/js/content.js
+++ b/drivers/firefox/content/js/content.js
@@ -1,6 +1,8 @@
 "use strict";
 
 (function() {
+	var lastEnv = null;
+
 	addEventListener('DOMContentLoaded', function() {
 		removeEventListener('DOMContentLoaded', onLoad, false);
 
@@ -8,10 +10,16 @@
 	}, false);
 
 	function onLoad() {
-		if ( content.document.contentType != 'text/html' ) { return };
+		if ( content.document.contentType != 'text/html' ) { return; }
 
 		content.document.documentElement.addEventListener('load', function() {
-			sendAsyncMessage('wappalyzer', { env: Object.keys(content.wrappedJSObject) });
+			var env = Object.keys(content.wrappedJSObject);
+
+			if ( env.join() !== lastEnv ) {
+				lastEnv = env.join();
+
+				sendAsyncMessage('wappalyzer', { env: Object.keys(content.wrappedJSObject) });
+			}
 
 			removeEventListener('load', onLoad, true);
 		}, true);
@@ -31,7 +39,6 @@
 		sendAsyncMessage('wappalyzer', {
 			hostname: content.location.hostname,
 			html:     html,
-			env:      Object.keys(content.wrappedJSObject),
 			url:      content.location.href
 			});
 	}
diff --git a/drivers/firefox/content/js/driver.js b/drivers/firefox/content/js/driver.js
index 3c5703be0..7df97e7cd 100644
--- a/drivers/firefox/content/js/driver.js
+++ b/drivers/firefox/content/js/driver.js
@@ -151,7 +151,7 @@
 								;
 
 							menuItem.bind('command', function() {
-								w.driver.goToURL({ url: w.config.websiteURL + 'applications/' + app.toLowerCase().replace(/ /g, '-').replace(/[^\w]/g, '') });
+								w.driver.goToURL({ url: w.config.websiteURL + 'applications/' + app.toLowerCase().replace(/ /g, '-').replace(/[^\w-]/g, '') });
 							});
 
 							$('#wappalyzer-menu').append(menuItem);
diff --git a/drivers/firefox/install.rdf b/drivers/firefox/install.rdf
index 9db4c7a38..bbdc06d4d 100644
--- a/drivers/firefox/install.rdf
+++ b/drivers/firefox/install.rdf
@@ -3,7 +3,7 @@
 <RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:em="http://www.mozilla.org/2004/em-rdf#">
 	<Description about="urn:mozilla:install-manifest">
 		<em:id>wappalyzer@crunchlabz.com</em:id>
-		<em:version>2.3.2</em:version>
+		<em:version>2.3.4</em:version>
 		<em:type>2</em:type>
 		<em:unpack>true</em:unpack>
 
diff --git a/drivers/firefox/skin/images/icons/Ruby on Rails.png b/drivers/firefox/skin/images/icons/Ruby on Rails.png
new file mode 100644
index 000000000..ca0ca559a
Binary files /dev/null and b/drivers/firefox/skin/images/icons/Ruby on Rails.png differ
diff --git a/drivers/html/images/icons/Ruby on Rails.png b/drivers/html/images/icons/Ruby on Rails.png
new file mode 100644
index 000000000..ca0ca559a
Binary files /dev/null and b/drivers/html/images/icons/Ruby on Rails.png differ
diff --git a/share/images/icons/Ruby on Rails.png b/share/images/icons/Ruby on Rails.png
new file mode 100644
index 000000000..ca0ca559a
Binary files /dev/null and b/share/images/icons/Ruby on Rails.png differ