Password Leak Monitor
PulseGate's liveness check found it on 13 Sep 2026; it is registered on Firefox Add-ons and has been in the index since 13 Sep 2026. How this is checked
Password Leak Monitor is an open-source browser extension that monitors passwords used in the browser and alerts users when they appear in known data breaches. It is intended for privacy-conscious users and developers seeking browser-based credential exposure monitoring.
Inferred · not functionally tested
Overview
5 featuresPurpose: Checking whether passwords have appeared in data breaches without manually monitoring breach databases.
Inferred · not functionally tested
Audience: privacy-conscious web users and security-focused developers
Inferred · not functionally tested
Functions: monitoring
Inferred · not functionally tested
Interfaces: API: indicated (inferred, not tested) · MCP: unknown · CLI: unknown · Self-hosting: unknown
Recorded constraints: pricing: open_source · license: Open Source · platforms: WEB, API · deployment: browser, embeddable, cloud_managed
Constraint provenance is unknown; confirm requirements with the publisher.
Record sources: github.com · addons.mozilla.org. These links do not verify the individual claims.
In the Browser DevTools & extensions space, Password Leak Monitor takes a focused approach. Inferred · not functionally tested: It focuses on checking whether passwords have appeared in data breaches without manually monitoring breach databases. Inferred · not functionally tested: Password Leak Monitor is an open-source project aimed at privacy-conscious web users and security-focused developers. Basis unknown · not verified: The project is open source (Open Source). Basis unknown · not verified: Password Leak Monitor is available on the web and embeddable surfaces.
Behind Password Leak Monitor is mathiscode, and it first shipped in 2019. Inferred · not functionally tested: Among its 5 catalogued features are password monitoring, breach alerts, and browser extension. Inferred · not functionally tested: Catalogued interfaces include a public API.
Summary written by a language model from the project’s public pages.
Tasks: Inferred · not functionally tested
- Password monitoring
- Breach alerts
- Browser extension
- Secure checking
- Firefox support
Topics: Inferred · not functionally tested
Built with & integrations
Trust & compliance
Indexing history
1What PulseGate has recorded for this listing
- Indexed13 Sep · 23:17 UTCPassword Leak Monitor seen via Firefox Add-onsSource: Firefox Add-ons · Open
Frequently asked questions about Password Leak Monitor
- What does Password Leak Monitor do?
- Inferred · not functionally tested: Password Leak Monitor focuses on checking whether passwords have appeared in data breaches without manually monitoring breach databases. It is catalogued under Browser DevTools & extensions on PulseGate.
- Who should use Password Leak Monitor?
- Inferred · not functionally tested: Password Leak Monitor is an open-source project built for privacy-conscious web users and security-focused developers.
- Is Password Leak Monitor free?
- Basis unknown · not verified: Yes — Password Leak Monitor is open source under the Open Source license and free to use.
- What platforms does Password Leak Monitor run on?
- Basis unknown · not verified: Password Leak Monitor runs on the web and embeddable surfaces.
- Is Password Leak Monitor still active?
- PulseGate's liveness check found it on 13 Sep 2026.
- Who develops Password Leak Monitor?
- Password Leak Monitor is developed by mathiscode.
- How long has Password Leak Monitor been around?
- Password Leak Monitor first shipped in 2019.
- Is Password Leak Monitor open source?
- Basis unknown · not verified: Yes — Password Leak Monitor is open source under the Open Source license.
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