Linux_Is_BestMozilla, the makers of the Firefox web browser, now have their own Mastodon instance that people within the Fediverse can join (open to the public).
It is Mozilla dot social
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.