Twitter, connection fails.
Some users bother notify Twitter that they posted to the Instagram. However, the user who does it with the Mastodon user is a minority. That makes me feel good ;)
Firefox 52.0.2 (64 bit) macos 10.12.4 (16E195). While playing Twitter video, disconnecting or plugging the earphone plug stops playback or the Mac sound stops until Firefox restarts.
About extended notice mail from "let's encrypt". If you update multiple domains in bulk, notice mails from 2nd domain onwards will continue to arrive.
Generalistic and moderated instance.