Collections in the #firefox update is just bookmarks made pretty and usefull but without sync on other devices and following standards, too bad..
Collections in Firefox | Firefox for Android Help
A beautifull Pinball game. Give it a try on #fdroid
Vector Pinball (Pinball game) - https://f-droid.org/packages/com.dozingcatsoftware.bouncy
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.