On Firefox Multi-Account Containers' Privacy Page you can request and collect all the privacy and GDPR related information that Firefox Multi-Account Containers is providing.
The privacy policy by is a legal document or statement that discloses how Firefox Multi-Account Containers gathers, uses, discloses, and manges their customers' data.
The basis for Mozilla Corporation sharing, adding, uploading, hosting, accessing or sending personal data out of Europe. Vendors can also add a description of their own impact assessment for data transfers.
Subprocessors are companies that provide a service for Mozilla Corporation and who has or potentially will get access to personal data of their customers.