how to open whatsapp with out scanning QR code

i want to open *whats app* in browser . but i have to scan the QR code produced in the browser through camera. is there any way to get my whats in browser. problem is my *camera* is not working it is not even opening .so i cant scan it . is there any way to open it? which tells how QR code works. **how do i permit whats app in browser?**