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Firefox Multi-Account Containers by Firefox

Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs. Cookies are separated by container, allowing you to use the web with multiple accounts and integrate Mozilla VPN for an extra layer of privacy.

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About this extension
About This Extension

The Firefox Multi-Account Containers extension lets you carve out a separate box for each of your online lives – no more opening a different browser just to check your work email!

Under the hood, it separates website storage into tab-specific Containers. Cookies downloaded by one Container are not available to other Containers. You can even integrate individual Containers with Mozilla VPN to protect your browsing and location. With the Firefox Multi-Account Containers extension, you can...
  • Sign in to two different accounts on the same site (for example, you could sign in to work email and home email in two different Container tabs.
  • Keep different kinds of browsing far away from each other (for example, you might use one Container tab for managing your Checking Account and a different Container tab for searching for new songs by your favorite band)
  • Avoid leaving social-network footprints all over the web (for example, you could use a Container tab for signing in to a social network, and use a different tab for visiting online news sites, keeping your social identity separate from tracking scripts on news sites)
  • Protect your browsing activity in individual Containers using Mozilla VPN, so you can shop while travelling abroad but check your bank account from a server in your home country.

After installing the Firefox Multi-Account Containers extension, click the Containers icon to edit your Containers. Change their colors, names, and icons. Long-click the new tab button to open a new Container tab.

For more information on how to use Multi-Account Containers, visit our help articles:


All about Multi Account Containers
Multi Container user - how to use Mozilla VPN
VPN subscriber - how to use Multi Account Containers
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Permissions and dataLearn more

Required permissions:

  • Access browsing history
  • Monitor extension usage and manage themes
  • Access browser tabs
  • Access your data for all web sites

Optional permissions:

  • Exchange messages with programs other than Firefox
  • Read and modify bookmarks
  • Clear recent browsing history, cookies, and related data
  • Control browser proxy settings
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Version
8.3.0
Size
901.4 kB
Last updated
3 months ago (16 May 2025)
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Licence
Mozilla Public Licence 2.0
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Release notes for 8.3.0
What's Changed
* Version upgrade by @rafeerahman in https://github.com/mozilla/multi-account-containers/pull/2663
* Community documentation update by @kelimuttu in https://github.com/mozilla/multi-account-containers/pull/2671
* Small fixes by @Cimbali in https://github.com/mozilla/multi-account-containers/pull/2572
* Update CI actions/upload-artifact to v4 by @strseb in https://github.com/mozilla/multi-account-containers/pull/2723
* Fix #2746: sort only ungrouped tabs by @apostrophest in https://github.com/mozilla/multi-account-containers/pull/2753
* Fix #2747: open/reopen container tabs in tab groups when appropriate by @apostrophest in https://github.com/mozilla/multi-account-containers/pull/2754
* Avoid logspam: "Cannot find menu item with id ..." by @Rob--W in https://github.com/mozilla/multi-account-containers/pull/2760
* Remove suggested key for sort_tabs by @apostrophest in https://github.com/mozilla/multi-account-containers/pull/2758
* Remove the Mozilla-VPN Banner Ad by @strseb in https://github.com/mozilla/multi-account-containers/pull/2722
* Version upgrade 8.3.0 by @apostrophest in https://github.com/mozilla/multi-account-containers/pull/2764

New Contributors
* @kelimuttu made their first contribution in https://github.com/mozilla/multi-account-containers/pull/2671
* @Cimbali made their first contribution in https://github.com/mozilla/multi-account-containers/pull/2572
* @apostrophest made their first contribution in https://github.com/mozilla/multi-account-containers/pull/2753
* @Rob--W made their first contribution in https://github.com/mozilla/multi-account-containers/pull/2760

Full Changelog: https://github.com/mozilla/multi-account-containers/compare/8.2.0...8.3.0
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