Many people need or want to interact with the web using multiple personas. They may have accounts for web-based work and personal email. They might sign out of their social media accounts before accessing online shopping, to ensure that any tracking scripts on the shopping sites can't pick up their social media activity. Users often use a standard and private browser window or two different browsers to address these requirements....contextual identities, container tabs, or account containers. This...wants to use in their browser. Tabs can be associated with one of...