Lock Tab

Name: Lock Tab
Rating: 3.5441176470588234 (68 reviews)
Author: gabomaldi

Prevents a tab from being closed accidentally

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Lock Tab is a handy Chrome extension that helps you prevent accidentally closing important tabs. It adds a padlock icon on each tab allowing you to toggle its locked or unlocked state. When a tab is locked, attempting to close it triggers a confirmation dialog, giving you the option to keep it open.

Important: After locking a tab, ensure you interact with the page (like clicking anywhere) to enable the protection, as required by Chrome's behavior. This simple but effective tool adds a layer of tab security to your browsing experience, minimizing accidental tab loss.

Extension

By:

gabomaldi

Users:

10,000

Rating:

3.54

(68) 0.02

Version:

1.3.0 Last updated: 2024-07-09

Creation date:

2022-06-24

Risk:

Permissions:

activeTab
storage

Size:

44.70KB

Email:

ga*****@hotmail.com

Full description:

Source:

Chrome Web Store

Updated:

a day ago

Ranking

# 7,719 ▲ 169

Other rankings

#1743 in Tools ▼ 6 #18 in prevent keyword 28 #37 in button for google calendar keyword 38 ▲ 1 #54 in tab keyword 81 ▲ 3

User reviews

Users appreciate the simplicity of locking tabs to prevent accidental closure, especially for important or active tabs, and value the auto-lock features. However, multiple reviews note inconsistent behavior such as locked tabs not preventing closure reliably, the need to refresh pages for locking to take effect, and automatic locking of new or refreshed tabs causing usability problems. Some also report bothersome confirmation dialogs even when no changes were made, and difficulties with locking pinned tabs as configured. Overall, the extension is helpful but has significant bugs affecting reliability and user experience.

Pros

Easy to use by clicking an icon to lock tabs.
Prevents accidental closing of important tabs or active sessions.
Allows auto-locking certain tabs, which is convenient for daily use.
Works well across multiple Chromium-based browsers.
Offers clear indication when a tab is locked.

Cons

Sometimes tabs do not lock immediately and require refreshing or multiple clicks.
Does not always prevent tabs from closing; some users report no warning on closing locked tabs.
Automatically locks new or refreshed tabs unexpectedly, causing usability issues.
Prompts frequent confirmations even when not necessary, leading to annoyance.
Issues with locking pinned tabs despite settings to exclude them.

Recent reviews

I'm so glad I'm not a profgrammer. It installed and works fine. This should keep me from screwing up and accidentally closing anything in my email/operations tab group.

St*****, 2025-06-18

Не работает 16.06.2025

N *****, 2025-06-16

Noticed the extension only locks tabs opened after installation. Pre-existing tabs don’t lock until refreshed. A simple fix, but worth noting!

刘云*****, 2025-06-09

View all user reviews ›

Extension safety

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.

Lock Tab requires very minimum permissions.

Risk impact analysis details

High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.

Risk likelihood

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. 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 Chrome extension.

Lock Tab has earned a good reputation and can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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