Just Read - Text to Speech

manifest.json

{
  "manifest_version": 2,
  "name": "Just Read",
  "version": "1.1",
  "description": "A Firefox extension to read the highlighted text.",
  "permissions": [
    "contextMenus",
    "activeTab",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e9d2b9b7-bceb-411f-97fd-b90b1436d199}"
    }
  },
  "browser_action": {
    "default_icon": {
      "16": "icon.png",
      "48": "icon.png",
      "128": "icon.png"
    },
    "default_popup": "options.html",
    "default_title": "Just Read"
  }
}