Prevent Closing Window

Displays the "Leave Page" prompt to avoid accidentally closing the current window. **BUG** To allow Firefox to shut down, click Stay on page and the Close This Tab button before you exit.

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Prevent Closing Window is a Firefox extension designed to safeguard your browsing sessions by prompting a confirmation before closing tabs or windows. By activating its protection options, users receive a "Leave Page" prompt whenever they click the close button, helping to avoid accidental closure of important data or tabs.

This extension adds a customizable tab that can be enabled in regular windows, private windows, or both. It offers user-friendly options accessible from the Add-ons page, allowing tailored protection preferences. Note: To fully close Firefox, users should select "Stay on page" and then use the "Close This Tab" button as described due to a known bug. Prevent Closing Window ensures better control over your browsing experience by preventing unintentional tab or window closures.

Productivity Privacy & Security Utilities

By:

Daily users:

Rating:

Version:

1.0 Last updated: 2020-09-19

Version code:

5101388

Creation date:

2019-01-05

Risk:

Permissions:

menus
tabs
storage

Size:

42.70K

Email:

js*****@outlook.com

URLs:

Full description:

Source:

Firefox Browser Add-ons

Updated:

a day ago

Ranking

# 13,033 ▼ 116

Other rankings

#7 in prevent keyword 29

#40 in event keyword 22

#56 in present keyword 29 ▼ 2

#111 in close keyword 18

#133 in ctrl+m (windows) keyword 17 ▼ 2

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User reviews

by 远离中共邪教快退出党团队, 2025-04-17

by 全民三退解体中共邪教, 2025-03-12

The Extension Works But It's Annoying That The Tab Auto Opens In The Startup And When You Open A New Tab In A Second Window

by Seikikai, 2024-05-29

View all user reviews ›

Extension safety

Risk impact

Prevent Closing Window requires a few sensitive permissions. 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.

Risk likelihood

Prevent Closing Window has earned a fairly good reputation and likely 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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