Old Layout for Facebook

AI Security Review

Evidence context: threat category none; evidence quality strong.

This security review examined the 'Old Layout for Facebook' extension, which claims to revert Facebook's interface to its pre-September 2020 design. The analysis found no security concerns.

The scan produced zero findings across all security categories. No malware signatures matched any code in the extension. No suspicious network domains or IP addresses were detected in the codebase. No obfuscation techniques were identified. No credential access patterns or secret exposure vulnerabilities were found. The manifest file analysis revealed no dangerous permission requests or suspicious configuration.

The extension's stated purpose—modifying Facebook's user interface to display an older layout—is a legitimate use case. These types of cosmetic modifications are common and typically involve CSS injection and JavaScript DOM manipulation, which do not inherently pose security risks when implemented properly. The absence of any security findings supports this assessment.

The developer is listed as '[email protected]', which is an email address rather than a corporate entity. While this might raise questions for some users, the scan found no evidence that the developer is hiding malicious behavior. The extension has accumulated 100,000 users, suggesting it has been functioning without causing widespread security incidents that would trigger user reports or platform takedowns.

Addressing the strongest counterargument: A skeptic might argue that a generic developer email and the extension's ability to modify Facebook's page could indicate hidden data collection or credential harvesting. However, this concern is not supported by the evidence. If the extension were collecting user data or credentials, the security scan would have detected network communications to suspicious domains, credential access patterns, or obfuscation designed to hide malicious code. The scan found none of these indicators. The zero findings across network activity, malware signatures, obfuscation, and secret exposure categories provide strong evidence that the extension does not contain hidden malicious functionality. The code appears to do exactly what it claims: modify Facebook's appearance.

Recommended action: This extension presents no security concerns based on the available evidence. Users concerned about Facebook's interface changes can install this extension with reasonable confidence that it will not compromise their security or privacy. The extension should be classified as benign, and any elevated risk scores from automated systems should be suppressed as false positives.

Key Reasons

• Zero findings across all security categories including malware, network, obfuscation, and credentials
• Legitimate use case with no evidence of hidden functionality
• No suspicious domains or IP addresses detected in code
• No obfuscation or code-smell indicators present

False Positive Considerations

• No security findings detected - clean scan
• Generic developer email may trigger automated flags despite benign behavior
• High user count (100K) may inflate perceived risk in scoring systems

Reviewed 2026-05-23; recommended action: suppress false positive; model confidence 95%.