Locksy - Tab Locker & Password Protection Firefox

Locksy - Tab Locker & Password Protection

Lock tabs with password, fingerprint, or face. Auto-lock on startup, timer, schedule, domain locks and stealth mode. Privacy first extension.

Features & Capabilities

Locksy provides military-grade tab protection with PBKDF2 encryption (600,000 iterations), ensuring your sensitive sessions stay private. All data stays on your device with zero online tracking, and biometric unlock is supported via WebAuthn for a seamless, password-free experience.

Key features include instant tab locking, domain-based auto-lock, bulk lock/unlock, auto-lock timers, and scheduled locking across multiple windows. It persists sessions across restarts, works offline, and is open-source under the MIT license, with cross-browser support (Chrome and Firefox).

User Growth & Download Statistics

By:
Vansh Sethi
Daily users:
259 4
Rating:
4.40
(5)
Version:
3.4.0 Last updated: 2026-08-27
Version code:
6443119
Creation date:
2025-12-13
Firefox add-on GUID:
locksy@locksy.dev
Firefox add-on numeric ID:
2962854
Weekly download count:
60
Firefox on Android:
Yes
Risk:
High risk impact High risk likelihood
Permissions:
Host permissions:
  • <all_urls>
  • https://locksy-api.vansh-sethi98760.workers.dev/*
  • https://locksy.dev/*
Content scripts matches:
  • <all_urls>
Size:
277.02KB
Email:
va*****@gmail.com
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-09-06
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Vansh Sethi
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/locksy/
Email:
va*****@gmail.com
Website:
https://www.locksy.dev

Publisher Change History

2026-07-24: va*****@gmail.com to va*****@gmail.com

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Permission Change History

2026-08-13: Version 3.2.1 → 3.3.0
Add Host permissions: https://locksy.dev/*
2026-07-24: Version 3.0.0 → 3.1.0
Add Permissions: idle
2026-07-18: Version 2.7.0 → 3.0.0
Add Host permissions: https://locksy-api.vansh-sethi98760.workers.dev/*
2026-04-18: Version 2.4.0 → 2.5.0
Add Permissions: contextMenus
2026-01-25: Version 2.1.0 → 2.2.0
Add Permissions: alarms
2026-01-06: Version 2.0.0 → 2.1.0
Remove Permissions: scripting

User Reviews

The idea is really good, and it’s clear that a lot of effort went into developing this browser extension for Mozilla. However, it still needs some work. For me, the password simply doesn’t work - it won’t accept either my own password or a generated one. Maybe it has something to do with the encryption, but I’m not sure since I’m not a programmer. The project itself is really promising. I’d definitely buy a paid Pro version, but only once the password issue is fixed. P.S. I installed the extension on an Android smartphone (Unihertz Jelly Star) running Android 13, with Mozilla Firefox version 154.0.
by fi*****, 2026-08-26

The automatic timer lock doesn't work
by Mi*****, 2026-04-04
View all user reviews ›

Is Locksy - Tab Locker & Password Protection Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Locksy - Tab Locker & Password Protection requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • High ******* ****** ** *** ********* ******** ************ **********
  • Medium ******* ******* ************* ***** *** ** ******* *** **** ******* ****** ******** *******
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Locksy - Tab Locker & Password Protection may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details
  • High This extension has recently changed publisher email (might be a transfer in ownership)
  • High **** ********* *** ******** ******* ** *** **** ****** *** ******* *** *** ** ****** ** *****
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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