Found that DTD works well when I'm on a tab binge. However it fails on magnet links.
It has definitely improved my browsing experience.
It would be nice to have an option to close the window when all duplicate tabs have been resolved.

This is probably one of the most useful extensions I've come across. For online shopping and board forums, just open whatever products/topics you like and it will automatically close duplicated tabs instantly, saving so much time and headaches. You have to set them up a bit. If you don't know how to write regex, ask an AI. For example, with Amazon you can use ^(.*?(?:dp|gp\/product)\/) to compare only the ASIN in the URL.
A few quirks: some params it doesn't recognize; if you mass-open bookmarks from the same domain, because the tabs aren't loaded completely, it will mistakenly close them all but one if "auto close dupes" is on.
I also recommend the extension "ClearURLs". It removes almost all trailing trackers in an URL keeping it very clean.

This is my first extension review, but I want to express that this is the first tab de-duplicator extension I've encountered that performs this straightforward task in a streamlined and intelligent manner. Thanks!