Features Twitch left out. Restored, quietly, in the background.
A browser extension that layers missing viewer conveniences onto the Twitch player and chat. Runs unattended once installed.
The full feature set changes as Twitch does and is tracked in the project's wiki rather than fixed here.
ttv-tools.zip off the latest release, extract it, then load it unpacked via chrome://extensions with Developer mode on.Maintained. No fixed roadmap — changes land as Twitch's own platform does.