Fixed FF validation issues

drivers/firefox/install.rdf

@@ -18,11 +18,11 @@
 
 		<em:optionsURL>chrome://wappalyzer/content/xul/preferences.xul</em:optionsURL>
 		<em:optionsType>3</em:optionsType>
-		<em:iconURL>chrome://wappalyzer/skin/images/icon128x128.png</em:iconURL>
 
 		<em:name>Wappalyzer</em:name>
 		<em:description>Identifies software on the web.</em:description>
-		<em:iconURL>chrome://wappalyzer/icon.png</em:iconURL>
+		<em:iconURL>chrome://wappalyzer/skin/images/icon128x128.png</em:iconURL>
+		<em:icon64URL>chrome://wappalyzer/skin/images/icon64x64.png</em:icon64URL>
 		<em:creator>Elbert Alias</em:creator>
 		<em:homepageURL>http://wappalyzer.com</em:homepageURL>
 	</Description>

drivers/firefox/locale/en-US/wappalyzer.dtd

@@ -7,7 +7,6 @@
 <!ENTITY wappalyzer.categories        "Categories">
 <!ENTITY wappalyzer.performance       "Performance">
 <!ENTITY wappalyzer.interface         "Interface">
-<!ENTITY wappalyzer.general           "General">
 <!ENTITY wappalyzer.tracking          "Tracking">
 <!ENTITY wappalyzer.research          "Anonymously send reports on detected applications to wappalyzer.com for research">
 <!ENTITY wappalyzer.analyzeHeaders    "Analyze response headers">