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.
App Cloner - Clone your Android apps so you can use multiple logins.
island - a free and opensource alternative to parellel space
Parallel Space - Parallel Space – Multiple accounts and Two-Face is free to use mobile app that helps you clone or run multiple accounts of the same app simultaneously, and use themes to style your unique space.
AllAccounts - AllAccounts is an extension that allows Firefox to connect to websites using different user names.
Multiple Accounts - Multiple Accounts: Parallel App is a free to use mobile app that helps you to run multiple accounts of the same application at the same time over a single phone.