For those who want a transparent background for the toolbar button, you can use Firefox's built-in undo icon instead via userChrome.css:
```css
toolbarbutton[label="Undo Closed Tabs Button"]{
--webextension-toolbar-image: url("chrome://global/skin/icons/undo.svg") !important;
--webextension-toolbar-image-dark: url("chrome://global/skin/icons/undo.svg") !important;
}
```

wish could change back to previous icon, and also be able to adjust width of list

After update to FF 156 stopped working.
Edit:
It's something wrong with FF, after update to 156.0.1 works again

Thank you for the very helpful add-on!

Please make an ability to choose the old transparent icon.

Great addon, have used it for years, I wish the icon was still transparent, however, to work with dark themes and not stand out as much.

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.

Pretty useful,thankyou.

this extension would be great if the icon and background can follow color of the themes, and customize the size width

Why did you ruin the design? What are these huge distances between menu items now? Please bring back the compact list!

good. I can choose the one I want among closed tabs.

Only uses RAM when opening the popup, does a fantastic job since it also can open whole windows again.

С недавних пор расширение стало открывать не ту вкладку на которую выберешь, а ранее закрытые.

I have a use case where I want the button to show me a list (on left click) instead of just opening the last closed tab. If this is not your use case the recommend most-used-addon (Undo Close Tab by Manuel Reimer) has better options.

I've been using this add-on daily for years and it's fantastic. Rating: 5 stars. However, it just stopped working today (2022.03.23): it shows an empty list. What happened? I'm giving it 2 stars for now, will revise as soon as it starts working again.
EDIT - I tried a different extension with the same functionality, and it doesn't work either. So the fault must be with my Firefox install. I'm restoring the 5 stars :-)

Сделайте кнопку открытия журнала в конце окна, пожста. В опере раньше такая была - очень логично: не нашел закрытой вкладки - пошел искать в историю.

I wish there was no dividing line between the favicon and the title. And, the gap between the favicon and the title is too wide.