Very helpful, but unfortunately doesn't work with the crappy new UI of Twitter.

إضافة جميلة وتريحني من فتح الحساب وحظه او حتى اظهار قائمة الخيارات لحظر التغريدة ,, واقترح لو كانت هناك امكانية لتحديد اكثر من تغريدة ثم حظر اصحابها معاً

There is also a one block button on Who to Follow page, but that does not work.

Works really well! I block a lot of people that I see in Twitter's search results, so this makes it much easier to block and move on.

It just doesn't work. I got the latest version of Firefox on Windows and I just installed this add-on and restarted the browser. Sure, I can see the one-block button on every account, tweet, like lists and retweet lists but most of the time when I click on them there is no response. It happened once that the blocking did occurred when I was on a Likes list but then I saw it was to block the OP's account instead of the one who made the like! So I had no choice but to uninstall it.

Doesn't work on the likes of a tweet. For example, if you open a tweet and then click the likes number, it pops up a window with all the people who liked it. The block button does not work there.