Mozilla Master Password Recovery Screenshots:
setting Master Password recovery options

Currently there are 8 decryption methods available:

1. Preliminary attack is a set of mini sub-attacks.
2. Artificial Intelligence attack. Scans your system for the lost password.
3. Dictionary attack. Try every word from a dictionary until the password is found. This attack is the most effective.
4. Brute-force attack. Guess the password by trying all probable password variants by given character set.
5. Mask attack. Very helpful if there's any information about the password.
6. Base-word attack. Useful if a part (or source word) of the password is known.
7. Combined dictionary attack - to guess complex passwords.
8. Phrase attack - search complex password by looking through a dictionary with frequently used phrases and word combinations.

Once selected a recovery type, you will be prompted for different options on the next Wizard page. Let's take a closer look at them.