Unable to screenshot this due to privacy concerns, but in *.slack.com web client, every time I switch to a different channel or conversation, it pops back up with the info.
https://imgur.com/a/IvR6FqA - Extensions list
Firefox 86.0.1 (64-bit)
Gentoo Linux (firefox-bin)
Can there be a blacklist feature or something, to not show info on certain domains/wildcards?