I’m not entirely sure if they were imported or not, e.g. password may have been - but none of these are used by Tor Browser, and some are sanitized (wiped on close).
- Tor Browser opens in Private Browsing mode (PB mode)
- Password manager is disabled due to CAs (cert authorities). The database is there but not used (hence why I said it may have been imported)
- PB Mode does not keep history, by design
- Auto-fill data likewise is not enabled by Tor Browser
This is to help ensure no “disk” activity. That is, you close the browser and there is no record (e.g. computer forensics) of where you went.