Download for Firefox - What is Halcyon?
Halcyon Share can replace Twitter Tweet buttons with Mastodon Toot buttons redirecting to a Halcyon instance which can be freely chosen by the user.
It can also keep the Tweet button but make it smaller and add a Toot button next to it.
Halcyon is a open source webclient for Mastodon which makes it easier to use and more beautiful.
Halcyon is hosted by many different people on independent servers, therefore no domain for the redirect is hardcoded.