[squanch]

I am sad to hear this. I have been using uMatrix now for quite some time, it has always been one of the extensions I install directly after setting up a new browser (together with uBlock Origin).

If the author, Raymond Hill, ends up reading this: thank you Sir, for all the (probably unpaid!) effort you have been putting into this extension for years. It's certainly an inspiration to actively contribute to the open source community.