"# translation-extension"

translation-extension/ ├─ icons/ │ └─ icon.png ├─ services/ │ └─ translationService.js ├─ background.js ├─ content.js ├─ tooltip.js ├─ styles/ │ └─ tooltip.css ├─ manifest.json

Install & Test

Save files in a directory (translation-extension).

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