Selection Highlighter

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Selection Highlighter",
  "description": "Automatically highlight all occurrences of current selection on current page.",
  "version": "0.0.3",
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "Selection Highlighter"
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "options_page": "options.html",
  "content_scripts": [
    {
      "run_at": "document_end",
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "js": [
        "content_script.js"
      ]
    }
  ],
  "content_security_policy": "default-src 'none'; script-src 'self'; style-src 'unsafe-inline'; connect-src https://*",
  "permissions": [
    "activeTab",
    "<all_urls>",
    "storage",
    "tabs"
  ]
}