Caniuse Finder

Extension shows info about supporting front-end web technologies in different browsers on caniuse.com site

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manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "__MSG_ext_name__",
  "description": "__MSG_ext_description__",
  "default_locale": "en",
  "version": "1.0.0",
  "permissions": [
    "activeTab",
    "contextMenus"
  ],
  "web_accessible_resources": [
    "img/icon48.png",
    "img/icon128.png"
  ],
  "browser_action": {
    "default_title": "__MSG_ext_name__"
  },
  "icons": {
    "16": "img/icon16.png",
    "32": "img/icon32.png",
    "48": "img/icon48.png",
    "128": "img/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": false
  }
}