Features & Capabilities
User Growth & Download Statistics
Manifest V3 Add-on
- By:
- Thomas
- Daily users:
- 3,506 15
- Rating:
- 3.85 (124)
- Version:
- 0.2.4 Last updated: 2026-02-24
- Version code:
- 6159744
- Creation date:
- 2017-04-12
- Risk:
- Moderate risk impact Moderate risk likelihood
- Permissions:
- Size:
- 46.76KB
- Email:
- th*****@gmail.com
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-07-04
- Compare stats and ranking:
- Undo Closed Tabs Button vs Undo Closed Tabs Button Pro
- Undo Closed Tabs Button vs Undo|Duplicate Tab
- Undo Closed Tabs Button vs Undo Close Tab
Ranking
For Developers
Contact the developer
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User Reviews
Pros
- Very useful and reliable for reopening closed tabs, with multiple users praising its everyday usefulness.
- Allows selecting from a list of recently closed tabs and choosing which one to reopen, not just the last closed tab.
- Low RAM usage, as it only consumes memory when the popup is opened.
- Can reopen entire windows after restoration, benefiting multi-tab workflows.
Cons
- UI/UX changes and icon redesign have been poorly received; users miss compact spacing and usability (noted large gaps and extra dividers).
- Lacks theming and customization options (no dark mode or theme-aware icon/background); users want better theming support and visual customization.
Recent reviews
Thank you for the very helpful add-on!
Please make an ability to choose the old transparent icon.
by Fi*****, 2026-05-11
Great addon, have used it for years, I wish the was still transparent, however, to work with dark themes and not stand out as much.
by dx*****, 2026-04-16
How to ruin good extension. Change of toolbar icon was absolutely unnecessary, or at least you should give choice to users to pick between new vivid icon an old transparent icon.
by Be*****, 2026-02-27
Is Undo Closed Tabs Button 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.
Undo Closed Tabs Button 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
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.
Undo Closed Tabs Button is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
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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