OpenPGP - Tor browser compatible

By: Max

Encrypt, decrypt, sign, and verify PGP messages directly in your browser — built for Firefox and Tor Browser users and anyone who needs portable, keyring-free PGP without trusting a third-party app.

This add-on was removed from Firefox Add-ons Store on 2026-05-01

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Features & Capabilities

Encrypt, decrypt, sign & verify PGP messages entirely inside Firefox. Designed for Tor Browser and privacy-focused users — no files saved to disk, no external servers, no hidden code.

Many Tor users encounter PGP-protected logins or encrypted messages daily. Installing a desktop PGP application on a live USB or shared machine is often impractical or leaves traces behind. OpenPGP Extension solves this by keeping everything inside the browser: your keys live in Firefox's own encrypted storage, decrypted content never touches the filesystem, and operations happen locally using the widely-reviewed OpenPGP.js library.

Key features:

Generate RSA key pairs inside the browser
Encrypt messages to imported public keys
Decrypt messages with your stored private key
Sign messages (cleartext or detached)
Verify Messages with signatures using public keys
Import/export both private and public keys
Master password support to protect stored keys at rest with AES-256 encryption (All keys, your own private keys and also your contacts imported public keys)
Works on a portable Tor Browser USB stick — keys travel with the browser profile

Why it's safe to use with Tor: The extension requests only storage and downloads permissions. No network calls are made at all. Storage permission is used for saving keys to local browser storage, and download permission is only used when you take a backup (ie, export all of your keys into a .json file. If master password is used it's encrypted and can be imported again on any other installation with ease) All source code is unminified, unobfuscated and very much readable and easy to understand with plenty of comments. It does not phone home, in fact, it doesn't phone anywhere. No network requests are made. You can look at the source code over at my GitHub page: https://www.github.com/ernos/firegpg

Ideal for:

Tor Browser on a live USB or portable drive
Privacy-focused users who want PGP without installing GPG4Win, GPG4USB, or GnuPG
Anyone who wants a clean, auditable PGP tool with no desktop footprint

User Growth & Download Statistics

Add-on

By:

Max

Daily users:

Rating:

5.00

(3)

Version:

4.6 Last updated: 2026-04-26

Version code:

6235896

Creation date:

2026-04-11

Risk:

Permissions:

Size:

450.35KB

Email:

ma*****@yourdev.net

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-05-01

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Max

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/openpgp/

Email:

ma*****@yourdev.net

Website:

https://www.yourdev.net/openpgp

User Reviews

Super simple and very easy to use!

by Fi*****, 2026-04-17

Easy to use. Only uses the storage permission, which means it can't access anything else than it's own local storage. Might be worth mentioning in the extension details. Love it!

by Fi*****, 2026-04-16

Super convenient!

by Fi*****, 2026-04-16

View all user reviews ›

Is OpenPGP - Tor browser compatible Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

OpenPGP - Tor browser compatible requires very minimum permissions.

Risk impact analysis details

Medium Allows management of download operations but generally doesn't severely affect security unless misused.

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

OpenPGP - Tor browser compatible is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.