OpenDyslexic for Firefox

Open-Dyslexic is an open sourced font created to increase readability for readers with dyslexia. This extension overrides all fonts on web pages with the OpenDyslexic font, and formats pages to be more easily readable.

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manifest.json

{
  "name": "__MSG_appNameFirefox__",
  "version": "20.1.0",
  "manifest_version": 2,
  "description": "__MSG_appDescription__",
  "homepage_url": "https://opendyslexic.org",
  "icons": {
    "48": "assets/images/icons/icon-48.png",
    "128": "assets/images/icons/icon-128.png"
  },
  "browser_action": {
    "default_icon": "assets/images/icons/icon-128.png",
    "default_popup": "index.html"
  },
  "background": {
    "scripts": [
      "scripts/background.js"
    ],
    "persistent": false
  },
  "default_locale": "en",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*",
        "file:///*/*"
      ],
      "js": [
        "scripts/content.js"
      ],
      "exclude_globs": [
        "*://docs.google.com/*"
      ],
      "all_frames": true
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self';",
  "web_accessible_resources": [
    "assets/fonts/opendyslexic/OpenDyslexic-Bold.otf",
    "assets/fonts/opendyslexic/OpenDyslexic-BoldItalic.otf",
    "assets/fonts/opendyslexic/OpenDyslexic-Italic.otf",
    "assets/fonts/opendyslexic/OpenDyslexic-Regular.otf",
    "assets/fonts/opendyslexic/OpenDyslexicMono-Regular.otf",
    "assets/styles/core/opendyslexic-regular.css",
    "assets/styles/core/opendyslexic-bold.css",
    "assets/styles/core/opendyslexic-italic.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{759dbb01-b646-4327-bf9e-69ca2543ef8d}"
    }
  }
}