The web version doesn't give you more options. If anything it gives less and requires you to have the phone online at the same time. At the same time it does work in chrome.
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Whatsapp web和电脑版使用指南 whatsapp web 是在电脑上使用 whatsapp 的主要方式之一，尤其对于需要在电脑上工作的用户，能够更加方便地与朋友、家人和同事进行聊. Other modern codecs such as vp9 and av1 won't work, and whatsapp web is unable to convert them. Whatsapp uses the h.264/avc codec internally.
I don't understand what you're trying to get specifically from.
What i am trying to do is to open a link in the whatsapp web app, it works in chrome but in ff and ie, doesn't. When i open web.whatsapp.com in firefox (67.0.4, win10) the qr code is not loaded. I've been facing this issue for the last 9 months or so, where whatsapp web app would show in arabic instead of english, which is the preferred language in my browser.
