What are the key steps to export Firefox passwords using Python and NSS?

The process involves: loading the nss3.dll via Python's ctypes, calling `NSS_Init()` to initialize NSS with the profile path containing cert9.db, key4.db, and logins.json, obtaining the internal key slot with `PK11_GetInternalKeySlot()`, verifying the Master Password using `PK11_CheckUserPassword()`, reading encrypted data from logins.json, base64-decoding it, and finally calling `PK11SDR_Decrypt()` to retrieve plaintext credentials. The full implementation is demonstrated in the open-source test code linked in the article.