screenshotUndo Closed Tabs Button  |  Download Lets you undo closed tabs via a toolbar popup.

Some of the important features of the Undo Closed Tabs Button addon are listed below. This is followed by an overview of this addon. This summary contains few words about the addon, its function, and its features. Next is FAQ, this section is useful to get information about how this addon works in your browser. If you couldn't find a specific answer, please fill the bug report form on this page or the contact form on the homepage to let us know about your question. Following the FAQ, is the bug report form. It is designed to collect user feedbacks and bugs about this addon. Users can suggest improvements or feature requests through this form too. The next section is for submitting comments about this addon which uses the Facebook comments plugin. The last section is dedicated to reports submitted through the GitHub website. We hope the information provided on this page, could help you get all the basics you need about this addon and enable you to have a better experience with Undo Closed Tabs Button.

In short, Undo Closed Tabs Button is designed to open recently closed tabs in your browser. With this add-on installed, it is still possible to use the built-in close tab functionality of the browser. Please check the YouTube tutorial below to get an idea of how this addon works in your browser. If you want to contribute to the developement of this addon, please fork it on GitHub, and push your changes to a named branch. Moreover, you can review all the comments made on GitHub commits.

4 Reasons to Use Undo Closed Tabs Button

  • Provides a through undo close tab functionality by letting you choose the desired closed tab from the available list.

  • Easily have access to undo close tab functionality of the browser right from a toolbar popup.

  • Store a customizable number of tabs to restore in the undo menu.

  • Avlailble for all browsers (Firefox, Chrome, Opera and Edge) and platforms.

YouTube Tutorial

This video gives you an idea of how the extension works in your browser.

Matched Content


  • When you are multitasking in your browser, you might close a tab or two while switching between tabs. This is quite common when you are surfing different websites simultaneously. Most people who open a few tabs at once have to go through a lot of trouble to find the tab they have closed in the history. If you are doing extensive research and you accidentally close the tab in which you found the most information about your niche, it can be nuisance to retrieve it. However, in situations like these, the Undo Closed Tabs Button Addon comes in handy.

    The Undo Closed Tabs Button is an extremely convenient add-on which helps you in retrieving all the closed tabs at once. If you were in the middle of writing a piece of research and your most informational tab got accidentally closed, the Undo Closed Tabs Button can help you retrieve it without having you go through any trouble. This means that you can continue your surfing without hindrance of any sort. It lets you choose the desired tabs you want you re-open through a list of closed tabs. It is a user-friendly extension and can easily be used with a click of a button on the context menu. You can also store a customizable number of tabs in the undo menu in order to select from the most commonly opened tabs. The Undo Closed Tabs Button helps you in getting back all the tabs which you might have closed unintentionally or intentionally. Above all, the Undo Closed Tab Button is compatible with different browser themes; i.e. the light, as well as, the dark interface. We would recommend this convenient add-on to everyone, especially people who have a habit of multitasking and who usually go through the scenario of closing tabs accidentally.

Frequently Asked Questions

  • 1. What is Undo Closed Tabs Button?

    Undo Closed Tabs Button is a simple addon that lets you see the list of recently closed tabs in a simple interface in the toolbar. Simply click on the desired item to open it in a new tab. If you see a window icon on the right-hand side for each item, it is there for opening the closed - Window - including all tabs. There is also an options page to adjust the maximum number of tabs listed in toolbar popup.

  • 2. How can I work with this addon?

    To work with this addon, simply open the toolbar popup and click on the desired tab to open. By default, 25 items are shown in the popup, but you can change this from the options page. Each item has a title and a favIcon (if available). There is also a button in the UI (bottom-left corner) to open all closed tabs.

  • 3. How can I download the source code for Undo Closed Tabs Button?

    To download the source code for this extension from Chrome Web Store, it is recommended to use Extension Source Downloader. With this addon, you can download the source code as a ZIP or CRX format to your machine. If you want to download the source code from the Firefox addons store, please open the firefox download link (if available) in the Firefox browser and then right-click on the - Add to Firefox - button and select - Save Link As... - item. Choose the destination folder on your machine and then save the file in XPI format. You can then rename the XPI format to a RAR or ZIP file. Some extensions may have a GitHub repo address, which you can use to download the source code as well. But, it may not be the latest version of the addon. Therefore, downloading the source code from the official web stores is the best option as it always gives you the latest version of the addon.

  • 4. What does Undo Closed Tabs Button extension do?

    Tired of going to History -> Recently Closed Tabs, just to undo a closed tab? Then this extension is for you! This extension allows you to undo closed tabs via a toolbar popup. Open the popup UI to see the list of last previously closed tabs and select the one you would like to undo.

  • 5. How to add or remove the toolbar button in Firefox?

    You can add the button to the navigation toolbar by going to Firefox "View" then "Toolbars" and click on "Customize", then drag and drop the button anywhere on the toolbar. The tab bar button is shown by default.

  • 6. How to change addons settings?

    Please open the extension tab in your browser and then click on the options page. Within the options page, you can adjust the maximum number of listed items in the UI. Please click on the - Save - button to save the changes before closing the options page.

  • 7. How to change the assigned keyboard shortcut (Ctrl + Shift + Z)?

    To change the default keyboard shortcut (which opens last closed tab), open a new browser tab, enter "about:config" and search for "undoclosedtabsbutton.modifier" and "undoclosedtabsbutton.key" then change them accordingly.

  • 8. What are the alternatives for this addon (as an extension or software)?

    Please check AlternativeTo website ( to get more info about different alternative softwares for "Undo Closed Tabs Button".

  • 9. What is new in this version for Undo Closed Tabs Button?

    Check this link for information about the recent update in Mozilla Firefox.

  • 10. Where can I find the privacy policy for Undo Closed Tabs Button?

    Please read the privacy policy for this extension here.


Reporting Bugs

Your feedback goes a long way towards making this addon even better. With this feedback and bug report form, you can report bugs or suggest features/enhancements for the functionality or performance of this addon. Please note that this form will be sent to the developer(s) of this addon. You will not get an immediate or personal response at the moment. However, the developer(s) may contact you through the email address provided in this form for further clarifications or to request additional information regarding the reported bug(s).

If you want to rate or write a review for this addon in the official webstore, please press the - Rate this addon - button below.

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Please be as specific as possible. Basically, describe what happened, what you were doing when it happened, and why you think it is a problem.

Describe the step-by-step process required to reproduce the issue you are reporting. Be specific when describing these steps by providing as much detail as possible.

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Reviews | Discussions

Please note: keep these reviews/discussions clean, and avoid the usage of derogatory or inappropriate language or terminology in references to individuals or groups based on race, national or ethnic origin, color, religion, age, gender, etc. Do not submit bugs in your reviews, use the above bug-report section instead. Also, never post any personal information in these reviews.