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Using Container Tabs in Firefox

Container tabs let you stay logged into separate accounts side by side in the same browser window, without constantly signing in and out.

  1. Install the Multi-Account Containers extension

    Install "Multi-Account Containers" from the Firefox add-ons store.

  2. Create a new container

    Create a new container with whatever name fits your use, such as "Work" or "Personal."

  3. Open a site in a container tab

    Right-click a tab to open a new tab in the container of your choice.

  4. Always open a specific site in a specific container

    You can set frequently used sites to always open in a particular container automatically.

  5. Why it is worth using

    You can stay logged into a work account and a personal account at the same time, each isolated in its own color-coded tab, without repeatedly signing in and out.

Each container keeps its own cookies and login state completely separate

Every container behaves like its own isolated browser profile within the same window β€” cookies, logins, and site data in one container are invisible to another. This is what lets you be logged into two different accounts on the same website simultaneously, each in its own tab.

A privacy benefit beyond just multiple accounts

Assigning specific sites to specific containers can also limit cross-site tracking, since a tracker embedded on a page in one container generally cannot connect that activity to your browsing in a different container β€” useful for keeping, say, social media browsing separate from everything else you do online.

Frequently Asked Questions

How many containers can I create?

A few default containers are provided out of the box, and you can create as many additional custom containers as you need.

How can I tell a container tab apart from a regular tab at a glance?

Container tabs display a colored underline in the tab bar matching the container's assigned color, making it easy to see at a glance which container a tab belongs to.