Browser Security

Firefox Patches Critical Sandbox Escapes; Edge Enhances DLP Features

Nishant Sharma

— 1 min read
This newsletter is AI generated and may hallucinate sometimes 😊

Microsoft Edge Introduces Protected Clipboard for Data Loss Prevention

  • Microsoft Edge will gain a new Protected Clipboard feature aimed at preventing unauthorized applications from accessing sensitive data copied by users.
  • This security enhancement integrates with Microsoft Purview Data Loss Prevention (DLP) policies, allowing IT administrators to define and enforce granular rules.
  • The feature, expected to roll out in January 2026, aims to bolster enterprise data security by controlling sensitive clipboard data flow.

Source: Microsoft 365 Roadmap | Date: January 2026

Microsoft Edge Enhances DLP with Watermarking Protection for Sensitive Content

  • Microsoft Edge is set to implement Watermarking Protection, a feature designed to add visual watermarks to sensitive content displayed within the browser.
  • This protection aims to deter data leakage by discouraging users from taking unauthorized screenshots or photos of confidential information.
  • The functionality leverages Microsoft Purview Data Loss Prevention (DLP) policies, enabling organizations to apply granular controls on content access and sharing, with an expected release in January 2026.

Source: Microsoft 365 Roadmap | Date: January 2026

Mozilla Firefox Patches Multiple Critical Sandbox Escape Vulnerabilities

  • Mozilla addressed two critical sandbox escape vulnerabilities, CVE-2025-60000 and CVE-2025-60001, in Firefox that could lead to arbitrary code execution.
  • These flaws bypassed the browser's security sandbox, allowing attackers to run malicious code outside of the restricted browser environment.
  • The patches were released in Firefox version 122.0.1 and Firefox ESR 115.7.1, with users strongly advised to update their browsers immediately.

Source: The CyberThrone | Date: January 17, 2026

References

  1. Microsoft Edge: Protected Clipboard - Microsoft 365 Roadmap
  2. Microsoft Edge: Watermarking Protection - Microsoft 365 Roadmap
  3. Mozilla fixes multiple Sandbox escape Bugs - The CyberThrone

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