Sadly not actively developed, but still works amazing, I find it better than any other privacy plugin, or even than combination of them. Due to how easy it is to customize/adjust on per page basis, no deep menus or anything, click, whitelist some domains, done.

nice script and content blocker.
easy to adjust and unblock if needed. great work. Thanks

Amazing - a must have

Naprawdę działa. Super. Dziękuję

Beautiful & very useful. I hope Raymond Hill will continue updates. I think "For advanced users" should be removed in the section "About this extension" so as not to scare people into installing it without even trying to use it first.

Phantastisch, leider habe ich kein Icon in meiner Adons-Zeile

It's a very sad day to see this addon's repo being archived and the developer abandoning the project. It's a great tool and hopefully in a not too far future development will resume! Thanks for the addon and your hard work on creating one of the best addons on Firefox.

Someone dragged my attention to the fact that Raymond Hill got upset (see https://github.com/uBlockOrigin/uMatrix-issues/issues/291#issuecomment-694988696)
This is bad news. This extension is a niche, but very useful. The interface is clearly a UX wonderful design, given the mission it tries to fullfill.
I wish someone is willing to continue to maintain this extension. There is nothing to add currently, but from time to time, there's always something cool to add or fix.

A big thank you to Raymond Hill for supporting a better Web experience, and all people that thought uMatrix was broking their browsing experience when it was the opposite.