Firefox Multi-account Containers - Sign in to two different accounts on the same site
Pocket Explore - A human curated version of the web
Lightbeam for Firefox - Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.
Actually Read It Later - Save articles for reading later
Multilogin - Connect to websites as a multitude of different users
Raindrop.io - All your articles, photos, video & content from web & apps in one place.