This extension does nothing special. You manually choose the conversations to delete and then the script deletes chats one by one through the same dialog box. Therefore in practice it is faster to delete everything manually.
The reason I gave it 1 star is that after around 10 deletions with this extension chatgpt limits access because "You’re making requests too quickly.". So the extension not only doesn't really save your time, but may also be a reason for a temporary ban.

I think this is the first time I approve of an ad in a extension. The ad is not placed in an obtrusive way but is still visible and showing it's message.

It's weird to write a review about this but in a world of subscriptions and aggressive ads. This is ad placement done genuinely in a good way. Kudos to you creator.

Work exactly as intended, No problem so far.

It works again now, thank you very much!

Updated: Thanks for porting this to Firefox from author qcrao's original Chrome-based code and updating it to work with Firefox 150.0 and ChatGPT 5.3.

Very straightforward and quite convenient!!! Many thanks for this awesome plugin, this really fulfils this missing feature in chatGPT.

not working, will select and open the three-dots menu, but won't click on delete/confirm delete

Edit: after the update, it's working again. Thanks Dev

Such a simple yet valuable tool. Perfectly executed. Thank you so much!

you extention works perfectly , you made my work easier , thank you

This saved me a lot of time and clicking. Working and much appreciated!

It worked a couple weeks ago, today it didnt. Will update my rating when its fixed :(

Works great love that it deletes everything with one click keeps my chatGPT clean and neat