Close Tab Button Quantum Firefox

Close Tab Button Quantum

Toolbar button to close the current tab. Works on the newest version of Firefox. This is a replacement for browser.tabs.closeButtons feature set to '3' of old firefox.
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Features & Capabilities

Close Tab Button Quantum is a simple yet powerful Firefox extension that adds a dedicated toolbar button for closing the current tab instantly. Designed to work seamlessly with the newest Firefox versions, it replaces the deprecated browser.tabs.closeButtons feature set to '3' from older versions.

With this extension, users regain quick tab management functionality without relying on complex menus or multiple clicks. It's ideal for users who want a straightforward, accessible way to close active tabs directly from the toolbar, enhancing browsing efficiency and convenience.

User Growth & Download Statistics

Manifest V2 Add-on Developer Tools
By:
Firefox user 13510456
Daily users:
523 12
Rating:
3.80
(25)
Version:
1.0.1resigned1 Last updated: 2024-04-25
Version code:
5729418
Creation date:
2017-11-22
Risk:
Very low risk impact Low risk likelihood
Size:
10.05KB
Email:
cl*****@fmarin.com
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-17
Compare stats and ranking:

Ranking

# 4,778 ▲ 55
Other rankings
#38 in close keyword 21 #145 in tons keyword 37 ▲ 5#197 in button for google keyword 51 ▲ 1#235 in tabellenkalkulation keyword 16 ▲ 2

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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:
Firefox user 13510456
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/close-tab-button-quantum/
Email:
cl*****@fmarin.com

User Reviews

Users appreciate the add-on for restoring the close tab button functionality lost in Firefox Quantum, valuing its simplicity and reliability. However, multiple reviews highlight the lack of customization options, particularly inability to change the color or size of the close button, and imperfect replication of original Firefox behavior by showing close buttons on all tabs plus the title bar. Compatibility issues with CSS features and missing functionalities like middle-click reopening of closed tabs are also noted. Overall, it fulfills an important need but could be improved with more customization and better integration.
Pros
  • Effectively restores the close tab button functionality missing in newer Firefox versions.
  • Simple and reliable, works as advertised even with newer Firefox versions like v109.0.
  • Appreciated by users who use custom Firefox styles or miss the Tab Mix Plus extension.
  • Adds a close button to the title bar and removes close buttons from tabs as intended.
  • User-friendly and fills a specific functionality gap post-Firefox Quantum update.
Cons
  • Lack of customization options like changing the color of the close (X) button, which affects visibility especially in dark mode.
  • Does not perfectly replicate original behavior; users want the close button only on active tabs or only on the title bar, but the add-on shows buttons on all tabs plus the title bar.
  • Compatibility issues with certain Firefox CSS options like 'Hide lone tab' where close button behavior is inconsistent.
  • No option to scale or resize the close button, some users request smaller or adjustable button sizes.
  • No middle-click action to reopen last closed tab, which some users miss.
Recent reviews
by 敬念*****, 2025-03-24
Do nothing.
by st*****, 2025-03-03
by 远离*****, 2025-02-24
View all user reviews ›

Is Close Tab Button Quantum 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.

Close Tab Button Quantum does not require any sensitive permissions.

Risk impact analysis details
  • Low This permission has no access or impact on the user's system or data, thus carrying no risk.
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.

Close Tab Button Quantum 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.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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