First of all, the extension looks fine, and my AI-assisted code review did not reveal anything suspicious. However, I wonder why there is no homepage, no information about the author, and no link to the source code (GitHub or something similar).

I would feel much more comfortable if there were real names and more transparency behind this project, even though Copilot came to the following conclusion:

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Security & Privacy Review Summary (Tab Memory Manager)

Files reviewed:

manifest.json
service-worker.js
float-widget.js
platform.js
real-memory.js
Checks performed
Reviewed requested permissions
Reviewed host access permissions ()
Searched for network communication
Searched for telemetry and analytics
Searched for external API endpoints
Searched for remote code execution and dynamic code loading
Checked for obfuscation/minification
Reviewed content-script behavior
Reviewed local data storage usage
Reviewed memory collection logic
Findings

✅ No network requests (fetch, XMLHttpRequest, WebSocket, sendBeacon) found.

✅ No telemetry, analytics, advertising, or tracking code found.

✅ No external servers, APIs, or cloud services referenced.

✅ No dynamic code execution (eval, new Function) detected.

✅ No remote script loading detected.

✅ No obfuscated or intentionally hidden code detected.

✅ Data is stored only in browser-local storage (storage.local and storage.session).

✅ The optional permission is used only for displaying the floating memory widget on web pages.

✅ The memory-monitoring functionality appears technically consistent with the stated purpose of the extension.

Risk Assessment
Area AssessmentPrivacy Risk Very Low
Security Risk Very Low
Tracking Risk No evidence found
Data Exfiltration Risk No evidence found
Code Quality Good, readable, well-commented
Conclusion

Based on the reviewed source code, Tab Memory Manager appears to be a locally operating browser extension that performs its advertised functionality without transmitting user data externally. No indicators of tracking, telemetry, data collection, remote code execution, or suspicious behavior were found in the analyzed components.

Overall assessment: Low-risk, privacy-friendly extension (≈ 1–2/10 risk score).
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That said, I have not reviewed all files and components of this extension. Furthermore, my AI-assisted review is not a guarantee of security. It only reflects that neither I nor the AI found any obvious indicators of tracking, telemetry, or malicious behavior in the reviewed source code.

A Message to the author(s): Thanks for doing this! And sorry for my doubt /caution!