Simply doesn't work. It says "couldn't get username".

With the caveats that it doesn't apply to re-tweets and that, having kicked it off, you pretty much need to leave the Firefox window in the foreground with the focus for it to run reliably, I found that this works very well and successfully deleted >15 years of old tweets.

Tested and working on 2026-05-25
Add extension -> Load profile page -> Set language to English -> Start deleting

And you can run it in an extra browser window with no other tabs. So right now while I am writing this review Twitter Deleter is also deleting my Tweets in another window.

It works. Can you extend extension to support deletion of retweets. It looks like it is just different caption in the button.

It still works (8/2025) but is very slow going one by one - so only a good solution if you're more patient than me or have much fewer tweets :)

Worked great!

Worked fine. Removed tweets and replies easily. Wish there was more ways to remove the likes and retweets but its great!