FireFox / Chrome Error: An error occurred during a connection to X.X.X.X SSL received a weak ephemeral Diffie-Hellman key in Server Key Exchange handshake message. (Error code: ssl_error_weak_server_ephemeral_dh_key)

Type the URL given below in your browser's address bar,

about:config

Here in this config page, you will find a list of boolean entries. Search for below two entries,

security.ssl3.dhe_rsa_aes_128_sha

security.ssl3.dhe_rsa_aes_256_sha 

By default, these are set to TRUE. But you have to set them to FALSE in order to allow the less secured pages.

For Chrome and Opera users, instead of using HTTPS try using HTTP.

Using WhatsApp Web on Apple iPad and iOS

1) Open Safari browser on your iPad, Go to the URL of WhatsApp web – web.whatsapp.com, It will redirect you to whatsapp’s website, DON'T close it. After it loads completely, tap on address bar to show up your recent pages and bookmarks, than swipe it down to see hidden features of Safari including – Request Desktop Site.

2) Tap on Request Desktop Site and you are good to go. As you can see in image below, it will load up WhatsApp web client on your iPad than you can follow normal procedure just as we do on desktop browsers.

3) Scan QR code by going into WhatsApp web setting on your phone and once it is connected you will be able to use your iPad to chat via WhatsApp web client.

Thats it...