Firefox Decrypt – Mastering Password Recovery For Mozilla Applications

As of 1.0.0 Python 3.9+ is required. Python 2 is no longer supported. If you encounter a problem, try the latest release or check open issues for ongoing work.

If you definitely need to use Python 2, Firefox Decrypt 0.7.0 is your best bet, although no longer supported.

About
Usage
- Advanced Usage
- Non-Interactive mode
Ouput formats
- CSV/Tabular
- Pass – Password Store
Troubleshooting
- Windows
- MacOSX
Testing
Derived works

About

Firefox Decrypt is a tool to extract passwords from profiles of Mozilla (Fire/Water)fox™, Thunderbird®, SeaMonkey® and derivates.

It can be used to recover passwords from a profile protected by a Master Password as long as the latter is known.

If a profile is not protected by a Master Password, passwords are displayed without prompt.

This tool does not try to crack or brute-force the Master Password in any way. If the Master Password is not known it will simply fail to recover any data.

It requires access to libnss3, included with most Mozilla products. The script is usually able to find a compatible library but may in some cases load an incorrect/incompatible version.

If you encounter this situation please file a bug report.

Alternatively, you can install libnss3 (Debian/Ubuntu) or nss (Arch/Gentoo/…). libnss3 is part

If you need to decode passwords from Firefox 3 or older, although not officially supported, there is a patch in this pull request.

Usage

Run:

python firefox_decrypt.py

The tool will present a numbered list of profiles. Enter the relevant number.

Then, a prompt to enter the master password for the profile:

if no password was set, no master password will be asked.
if a password was set and is known, enter it and hit key Return or Enter
if a password was set and is no longer known, you can not proceed

Advanced Usage

If your profiles are at an unusual path, you can call the script with:

python firefox_decrypt.py /folder/containing/profiles.ini/

For more information click here.

Varshini

Varshini is a Cyber Security expert in Threat Analysis, Vulnerability Assessment, and Research. Passionate about staying ahead of emerging Threats and Technologies.