fixed manifest.json

extension/manifest.json

 {
 	"manifest_version": 2,
-	"name": "Hello World!",
+	"name": "a/b Testing Tool",
 	"version": "1.0",
-	"description": "My first Chrome extension.",
+	"description": "Tool for conducting A/B tests on a small scale",
 	"icons": {"16":"images/icon.png"},
 	"browser_action": {
-		"default_icon": "images/icon.png",
-		"default_popup": "popup.html"
+		"default_icon": "images/icon.png"
 	},
 	"permissions": [
 		"activeTab",
-		"https://ajax.googleapis.com/"
+		"https://ajax.googleapis.com/",
+		"webNavigation",
+		"*://*/*"
 	],
-	"homepage_url": "http://cluster.earlham.edu/~cjearley13/craig1617/user.html"
+	"homepage_url": "http://cluster.earlham.edu/~cjearley13/craig1617/user.html",
+	"background":{
+		"persistent": false,
+		"scripts": ["js/background.js"]
+	},
+	"content_scripts": [{
+		"matches": ["<all_urls>"],
+		"js": ["js/content.js"]
+	}]
 }