Last month Whatsapp launched its offcial web client that worked on Chrome browser, and now there is a happy news for Firefox and Opera users. The offcial web client at web.whatsapp.com will now work on Firefox and Opera browsers too.
1. Just head on to web.whatsapp.com on Firefox or Opera or Chrome
2. Now open WhatsApp on you phone and click “Menu” button and tap “WhatsApp Web“ and scan the QR code on your PC. You can also click the “+” sign and add new devices.