Clutter Free - Prevent duplicate tabs

It's kind of nice and good but extremly slow/laggy I have 300 tabs and decent PC ryzen 5 3600 overall CPU usage is less than 20% when it lags and chrome usage is 16%

I have been enjoying this extension, until just now when it popped up a system notification of another extension by the same author. This is unacceptable. Websites need permission to send notifications, but browser extensions don't. If this developer is willing to do that to advertise to me, what else are they going to put into this extension in the future?

Very useful tool

No longer works

Does not work

Surely there should be an option to block individual addresses not just a total domain blackout. These examples are auto opened as second tabs whenever I open the main site : https://www.amazon.co.uk/?tag=snxgb5-21 https://tesco.pxf.io Domain block doesn't just block duplicates, it blocks all other pages from that domain.

Consumes 20 to 80 percent of CPU resources

This Extension is very useful, Now my computer would experience good performance😊😊

This extension is really a life saver for people that open tens of tabs. At that point you start to loose track of open tabs and duplication starts to happen. This extension has saved me from duplicating my work inside the browser.

My work requires loads of research and I've had the Clutter Free extention installed on all five my browsers for years and its magic. I regularly have 30 to 120 tabs open on each of the 2 or 3 browsers that I use simultaneously, and to date CF unerringly prevented any tab duplication, which helps massively in such an overcrowded desktop environment.