The challenge
Facebook's DOM selectors rotate - hard-coded XPaths break within weeks.
The solution
A Selenium-driven Python CLI (main.py) that accepts profile URL + limit and returns JSON + optional CSV. Auth is cookie-based (facebook_cookies.pkl) with email/password fallback. functions.py provides login/navigation/checkpoint-detection primitives; main.py writes outputs atomically (temp → rename) so kills mid-run never corrupt data.
Results
Cookies + fallback
Auth modes
JSON + CSV
Output
Atomic writes
Safety