HTMaiL: Insert HTML into Gmail, Outlook and Yahoo Mail

Edit and easily insert HTML code into the body of your email message in Gmail, Outlook, and Yahoo Mail.

Premium users can view and search full source code, and see the source code differences between two versions.

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "version": "7.5.2",
  "manifest_version": 3,
  "name": "__MSG_app_name__",
  "description": "__MSG_app_description__",
  "default_locale": "en",
  "author": "dziul <dziul@gmail.com>",
  "icons": {
    "16": "src/assets/images/icon@16.png",
    "128": "src/assets/images/icon@128.png"
  },
  "permissions": [
    "storage",
    "tabs",
    "management"
  ],
  "background": {
    "service_worker": "service-worker-loader.js",
    "type": "module"
  },
  "action": {
    "default_title": "__MSG_app_name__"
  },
  "content_scripts": [
    {
      "js": [
        "assets/index.tsx-loader.cb16fc81.js"
      ],
      "matches": [
        "https://mail.google.com/*",
        "https://inbox.google.com/*"
      ],
      "css": [
        "assets/error-boundary.766d1078.css",
        "assets/index.381650c7.css"
      ]
    },
    {
      "js": [
        "assets/index.tsx-loader.bc224eb9.js"
      ],
      "matches": [
        "https://mail.yahoo.com/*",
        "https://*.mail.yahoo.com/*"
      ],
      "css": [
        "assets/error-boundary.766d1078.css",
        "assets/index.bc6adaf3.css"
      ]
    },
    {
      "js": [
        "assets/index.tsx-loader.d9ae87b3.js"
      ],
      "matches": [
        "https://outlook.live.com/*",
        "https://outlook.office.com/*"
      ],
      "css": [
        "assets/error-boundary.766d1078.css",
        "assets/index.c6759dc5.css"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "https://inbox.google.com/*",
        "https://mail.google.com/*"
      ],
      "resources": [
        "assets/use-message.7c43ef76.js",
        "assets/error-boundary.bd8e3851.js",
        "assets/index.tsx.4f572440.js"
      ],
      "use_dynamic_url": false
    },
    {
      "matches": [
        "https://*.mail.yahoo.com/*",
        "https://mail.yahoo.com/*"
      ],
      "resources": [
        "assets/use-message.7c43ef76.js",
        "assets/error-boundary.bd8e3851.js",
        "assets/index.tsx.6cabf351.js"
      ],
      "use_dynamic_url": false
    },
    {
      "matches": [
        "https://outlook.live.com/*",
        "https://outlook.office.com/*"
      ],
      "resources": [
        "assets/use-message.7c43ef76.js",
        "assets/error-boundary.bd8e3851.js",
        "assets/index.tsx.be009169.js"
      ],
      "use_dynamic_url": false
    }
  ]
}