Multi-Account Containers is an extension developed by Mozilla that allows you to separate your browsing experience into different color-coded tabs, to help protect your privacy. By using these containers, you can categorize your browsing based on purpose and create tabs for Work, Banking, Shopping and Personal browsing. For an extra layer of privacy, you can also integrate Mozilla VPN.
What you can do with Multi-Account Containers
Account Management
- Sign in to multiple accounts on a single website (e.g. personal and work email accounts)
- Manage different identities without conflicts
- Keep shopping, banking, and social media accounts separate
Privacy Protection
- Protect browsing with VPN integration
- Prevent tracking and security attacks
- Avoid social network footprints
Site Organization
- Assign websites to containers automatically
- Hide/Show and sort tabs by container
- Create color-coded browsing environments
Cross-Device Sync
- Sync containers across devices signed in with your Mozilla account
- Carry over container names and site assignments
- Maintain consistent organization everywhere
Installation Guide
Visit the Extension Page
Go to Firefox Multi-Account Containers on the Mozilla Add-ons website.
Add to Firefox
Click the Add to Firefox button on the extension page.
Confirm Installation
Click Add if you agree with the permissions requested by the extension.
Opening Websites in Containers
Access Container Menu
Click the Containers icon in the toolbar (if you don't see it, click the extensions button in the toolbar, then click the containers icon).
Select Container
Choose the container you want to open from the dropdown menu.
Opening Bookmarks in Containers
To quickly open a bookmark in a container, you need to allow the extension to access your bookmarks:
Access Extension Settings
Click the menu button, go to Extensions and themes and select Extensions.
Configure Multi-Account Containers
Click Multi-Account Containers in the installed extension list.
Enable Bookmarks Access
Select Preferences and check Enable Bookmarks Menus.
After allowing access to your bookmarks, you can right-click any bookmark and select Open Bookmark in Container Tab.
Right-Click Menu Options
The right-click menu provides convenient ways to manage your Containers and control how links are opened:
Always Open in This Container
This checkbox allows you to specify that all links from the same website should open in the same Container.
Hide This Container
This option allows you to temporarily hide the current Container and all its tabs.
Move Tabs to a New Window
This option allows you to move all the tabs in the current Container to a new window.
Managing Your Containers
Create New Containers
- Click the Containers icon in the toolbar
- Click Manage Containers
- Click New container
Customize Containers
- Click the Containers icon in the toolbar
- Click Manage Containers
- Change color, icon, or name
Remove Containers
- Click the Containers icon in the toolbar
- Click Manage Containers
- Choose container to remove
- Click Delete this container
Managing Site Assignments
Always Open a Site in a Container
- Click the Containers icon in the toolbar
- Click Always open this site in…
- Select the container for the current site
Remove an Assigned Site
- Click the Containers icon in the toolbar
- Click Manage Containers
- Select the container with the assigned site
- Click Manage site list
- Hover over the site and click the trash icon
Limit to Designated Sites
You can restrict a container to only open sites assigned to it. Other sites will be opened in No Container.
- Click the Containers icon in the toolbar
- Click Manage Containers
- Select the desired container
- Enable Limit to designated sites
VPN Integration
You can keep your browsing data separate and stay protected with Multi-Account Containers. Additionally, you can integrate Mozilla VPN into each container to add an extra layer of protection to your container tabs. This way, you can have all the data from the containers pass through an encrypted tunnel using one of Mozilla's servers.
VPN Integration Benefits
- Enhanced privacy protection for sensitive browsing
- Geographic location flexibility for different containers
- Additional encryption layer for container data
- Separate VPN connections for different browsing contexts
To learn more about VPN integration, visit Protect your container tabs with Mozilla VPN.
Container vs. Profiles
It's important to understand the difference between containers and browser profiles:
| Feature | Containers | Profiles |
|---|---|---|
| Data Separation | Cookies, sessions, storage | Complete browser data |
| Setup Complexity | Simple, within same browser | Separate browser instances |
| Resource Usage | Lightweight | Higher memory usage |
| Use Case | Activity separation | Complete environment isolation |
Common Questions
Are Firefox containers and Multi-account containers the same?
Firefox Containers and Multi-Account Containers are complementary features that help you keep your online activities organized. While both options allow you to separate your browsing into different container tabs, the Firefox Containers feature allows you to always open new tabs in containers.
On the other hand, Multi-Account Containers is an extension developed by Mozilla that fully optimizes Firefox containers and unlocks its full potential offering additional features, such as site assignments and integration with Mozilla VPN.
How does this compare to the Facebook Container extension?
Facebook Container isolates Facebook and Facebook-owned sites automatically. The Firefox Multi-Account Containers is a more general extension that allows you to create containers and determine which sites open in each container. This extension can be customized to suit your needs for multiple sites and multiple logins, but takes more time to set up than Facebook Container.
You can use Multi-Account Containers to manually create a custom container for Facebook and assign facebook.com to it. However, unlike Facebook Container, Multi-Account Containers doesn't prevent you from opening non-Facebook sites in this custom container.
Can I use both Multi-Account Containers and Facebook Container?
Yes, but you need to be careful. Don't use Multi-Account Container to assign facebook.com to a container, and then try installing Facebook Container. If you are a Multi-Account Containers user and want to use both add-ons, unassign facebook.com, messenger.com, and instagram.com first, then install Facebook Container.
Additional Resources
For more detailed information about Multi-Account Containers and advanced usage, we recommend:
Official Mozilla Multi-Account Containers Documentation - Complete guide from Mozilla
Firefox Privacy Features - Learn about Firefox's privacy tools
Container Best Practices - Tips and tricks for effective container use
Containers Project Page - Technical background information
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About the Author
I'm the CTO of Kahana, bringing a unique perspective from my management consulting experience at Clarkston Consulting and biomedical engineering background from Duke University. I'm focused on making the future of work more ergonomic through innovative technology solutions that prioritize user well-being and productivity.