WhatsApp Incognito by Manas

Be invisible on WhatsApp™ Web by disabling read receipts and presence updates
UNOFFICAL FIREFOX PORT
See other people's read receipts, but control when you send yours.
Freely explore any chat thread or status without making it read, even for groups. And additionally, nobody knows you're online if you don't want to.

FEATURES

• Adds a new menu in WhatsApp™ Web that lets you toggle on and off the sending of:
• Read receipts for messages (two blue ticks mark)
• "Last Seen" updates (presence) and "typing"
• Works for groups
• Works for statuses/stories
• Restores all deleted messages
• See if a message was sent from a phone or a computer
• Lets you download statuses
• When read receipts are blocked, the unread messages counteres show up transperent, and when you read them they turn red. This helps to tell when you are in invisible mode and it is safe to click on chats.
• If you want to mark a spesific chat as read anyway, you can open the sub-menu of it and choose "mark as read". A warning will show up and when you confirm, a read receipt will be sent.

GitHub repo:
https://github.com/moodynooby/whatsapp-web-incognito

PRIVACY

No data is ever transmitted to anywhere.
Privacy Policy here: https://github.com/tomer8007/whatsapp-web-incognito/wiki/Chrome-Extension-Privacy-Policy

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LEGAL
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WhatsApp is a trademark of WhatsApp Inc., registered in the U.S. and other countries. This extension is an independent project developed by Tomer H. and has no relationship to WhatsApp or WhatsApp Inc.