Optional Permissions:

This setting allows you to open a bookmark or folder of bookmarks in a container.

Firefox Accounts Sync:

This setting allows you to sync your containers and site assignments across devices.

Tab behaviour:

Replace the current tab if a page which is assigned to another container is opened (instead of keeping the current tab open). Opening tabs with middle mouse button is not affected.

Keyboard Shortcuts:

Edit which container is opened when using the numbered shortcuts.

Container to open with Keyboard Shortcut 1

Container to open with Keyboard Shortcut 2

Container to open with Keyboard Shortcut 3

Container to open with Keyboard Shortcut 4

Container to open with Keyboard Shortcut 5

Container to open with Keyboard Shortcut 6

Container to open with Keyboard Shortcut 7

Container to open with Keyboard Shortcut 8

Container to open with Keyboard Shortcut 9

Container to open with Keyboard Shortcut 10

Onboarding:

Toggle this to see the onboarding panels again.