manifest.json

{
  "name": "Roulette Bet",
  "version": "1.2",
  "description": "Chrome extension for betting on CSGO Empire",
  "permissions": ["declarativeContent", "storage", "*://*.csgoempire.com/*", "activeTab", "tabs", "<all_urls>"],
  "browser_action": {
  	"default_popup": "popup.html",
  	"default_icon": {
  		"16": "images/roulette16.png",
      "32": "images/roulette32.png",
   		"48": "images/roulette48.png",
   		"128": "images/roulette128.png"
   	},
    "default_title": "Bet on CSGO Empire"
  },
  "background": {
  "scripts": ["scripts/background.js"],
  "persistent": false
  },
  "content_scripts": [{
        "matches": ["<all_urls>"],
        "all_frames": true,
        "js": ["scripts/page.js"]
    }],
  "icons": {
  	"16": "images/roulette16.png",
    "32": "images/roulette32.png",
   	"48": "images/roulette48.png",
   	"128": "images/roulette128.png" },
  "manifest_version": 2
}