Make Slack a Little Less Distracting

In the browser version of Slack the favicon shows up white if any message appears. This disables that, keeping the red new-message icon intact

You’ll need a browser blocker to do this (I highly recommend uBlock Origin but any that support the Adblock-style personal blocking lists will work)

For a specific Slack server

In your personal filter list, add the following URL - replacing INSTANCE with your Slack server’s name

https://INSTANCE.slack.com/img/ico/app_icon_32px_online_unreads.png

For all Slack servers

Same thing but in your personal filter add the URL

https://a.slack-edge.com/5d94d/img/ico/app_icon_32px_online_unreads.png

Done

Now when a message that doesn’t need your attention comes in you don’t get the distracting white favicon, but will still get the red version of the icon to indicate you’ve got a new direct message. Noice.