How to install WhatsApp pink
How do I install WhatsApp pink
Are you asking how to download WhatsApp of WhatsApp pink?
Apparently WhatsApp pink is a malicious app.
The user agent in the System Details shows you use a very old Firefox 40.0 version that WhatsApp doesn't support (minimum is Firefox 60).
Are you really using Firefox 40.0 or do you have modified the user agent ?