Browser extension which gives you more control over your Twitter timeline and adds missing features and UI improvements - available for desktop and mobile browsers
It looks like Communities has had lots of changes since the last time I looked at it, creating an issue to track issues related to this
[ ] The Tweet button in the desktop sidebar disappears when you view a Community and we aren't observing its reappearance to change "Post" back to "Tweet"
[ ] Communities now have a "Top" and "Latest" tabbed timeline, see #553
It looks like Communities has had lots of changes since the last time I looked at it, creating an issue to track issues related to this