Works as advertised. Consider adding a feature to quick block with a key stroke as the mouse cursor hovers over the tweet in question.

Not working.

It's incredible! Just one click and we can block a user! Perfect for avoiding a lot of junk.

Usually works (block button appears) for home feed, less often for replies. When the block button is visible, it works. Again, just often doesn't show up.

Shows the button, but it does nothing