MozPETs: Mozilla Privacy Enhancement Technologies

The goal of the MozPETs project is to produce a web browser and mail client with enhanced privacy and security features.
Our prototype is based on the Mozilla Suite, and we plan to add as many privacy enhancement technologies (PETs) as possible.
It is under heavy development, highly experimental and not recommended for end users yet.


MozPETs contains a number of changes and extensions to provide better privacy protection for the user. Compared to the stock Mozilla Suite shipped by, our current build contains the following changes and additions:

A paper describing MozPETs was presented at the Third Annual Conference on Privacy, Security and Trust (PST05) and is available here: MozPETs.pdf.

Downloads, Source Code and Installation Instructions

Check the installation and build instructions for more information.

Mailing List

If you have any comments, suggestions, or requests please send a mail to our mailing list. You can subscribe to the mailing list from the list info page. Please check the mailing list archives before posting to see if your question has been discussed before. To post to the list, send an e-mail to


MozPETs evolved from a research project at the Darmstadt University of Technology, Germany. If you have any questions or suggestions, please contact mozpets-discuss mailing list.

MozPETs is hosted on Logo