Hours gone to waste because of this piece of crap. Instead of closing just duplicates, it closed all tabs that I had 2 or more of open. So for example, I had two copies of a tab. It closed them both. Ctrl-shift-T only goes back so far. I'm going to have to start all the way back at the beginning now. I can't even express my rage at this useless extension. I completely regret I ever got it.

It's super great but I have an issue now on Linux Firefox 91. Duplicate Tabs requires Containers, that I deactivate. Containers, when activated for Duplicate Tabs, hinder my right-click, C keyboard shortcut to quickly copy URL of a link, which I need every 5 minutes. I had to deactivate this extension, sadly...

This is exactly what I want!

Request: I want a switch to temporarily disable this from toolbar.

Absolutely excellent. 10/10. Just a little request: it would be nice not to include the tabs "New tab" in the list.

I seriously can't believe this isn't part of those other tab management plugins.

Please optimize this extension for Firefox Android

It doesn't work well recently. It needs to be fixed.

This Extension is nearly perfect! The best of the duplicate tab closing extensions on Firefox. I would love to see a couple features that I think would push this into the perfect 5* range.

[1] Whitelist should be available with the 'do nothing' option so that it applies to the "Close All" button as well, so that I can exclude certain pages (such as New Tab or about:blank) but still use that option.
[2] Add the option to pop up a Notification on duplicate. Automatically removing tabs has caused me issues, so I do not use that feature, but I still would love an option to know when I am duplicating an existing tab in the moment.
[3] In the duplicate tab notification window it would be nice to have the options to close New or Old duplicated tab, or to do nothing.

Thanks for all the hard work!

you cannot open two search tabs at the same time and the white list does not work with google search. what a thing

-Shrunk mode bug-
when all options are unpinned and then all options are hidden by shrunk mode, I can't unhide them again. when I click shrunk mode button, nothing is happens.

Does exactly what it says on the tin. Quite essential if you've got loads of tabs open and tend to open the same stuff...