"# translation-extension"

translation-extension/ ├── manifest.json ├── popup.html ├── popup.js ├── popup.css ├── background.js ├── content.js ├── icons/ │ └── icon.png └── _locales/ └── en/ └── messages.json

Install & Test

Save files in a directory (translation-extension).

Open chrome://extensions ➔ Load unpacked ➔ Choose directory.