please block people from my twitter on firefox

Do either of these Twitter help articles provide the information you need: * [https://help.twitter.com/en/using-twitter/blocking-and-unblocking-accounts How to block accounts on Twitter] * [https://help.twitter.com/en/using-twitter/twitter-mute How to mute accounts on Twitter] If not, you may need to poke around in Twitter's help a bit further. I don't think there are any browser settings to help you control what appears in your Twitter feed.