Inject sidebar

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Inject sidebar",
  "manifest_version": 2,
  "description": "Inject a sidebar on the current tab when the page action is clicked",
  "version": "0.2",
  "background": {
    "page": "background.html"
  },
  "page_action": {
    "default_icon": "whittlr.logo.png",
    "default_title": "Inject sidebar"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "script.js"
      ]
    }
  ],
  "permissions": [
    "tabs"
  ],
  "web_accessible_resources": [
    "frame.html"
  ]
}