The Privacy Extension For WhatsApp Web is a specialized tool for Firefox that aims to protect user privacy while using WhatsApp in public settings. This extension effectively blurs messages, media, and profile pictures, ensuring that sensitive information is not visible until the user actively hovers over it. Users can customize the blurring settings to include all messages, last message previews, media previews, and profile pictures, with easy toggling options available via a keyboard shortcut or the extension's menu.

As a subscription-based extension, it emphasizes user privacy by refraining from collecting personal information or message data. Communication with its server is limited to updates and issue reporting, reinforcing its commitment to user confidentiality. With an open-source design, users can independently verify the extension's privacy claims, making it an ideal choice for those concerned about maintaining their privacy while using WhatsApp Web in shared or public spaces.