Mailvelope

Enhance your webmail provider with end-to-end encryption. Secure email communication based on the OpenPGP standard.

Mailvelope - Secure Email Encryption Firefox Add-on

Mailvelope is a Firefox extension that enhances webmail providers with end-to-end encryption. It supports the OpenPGP encryption standard, allowing secure email communication. Compatible with Gmail, Outlook, Yahoo and more, it seamlessly integrates security into your workflow. Additionally, Mailvelope is open source and based on the OpenPGP.js library.
Download
View on Firefox Browser Add-ons

Add-on stats

Users: 30,508
1.59K
Rating: 4.06
(116)
Version: 5.2.0 (Last updated: 2024-07-05)
Creation date: 2014-04-14
Weekly download count: 471
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood:
Low risk likelihood
Manifest version: 2
Permissions:
  • *://*/*
  • dns
  • identity
  • nativeMessaging
  • storage
  • tabs
  • webNavigation
Size: 2.95M

Ranking

# 421 ▼ 3
Other rankings
Upgrade to see more rankings

Other platforms

Mailvelope (v6.0.1)
4.44 (434) 200,000
Not available on Android
Mailvelope (v5.2.0)
4.10 (9) 50,864
Want to check extension ranking and stats more quickly for other Firefox add-ons? Install Chrome-Stats extension to view Firefox-Stats data as you browse the Firefox Browser Add-ons.

Add-on summary

Analyze keywords

Mailvelope adds missing encryption and decryption features to the user interface of common webmail providers. It supports the PGP encryption standard (OpenPGP, GPG) and is compatible with other PGP applications. Encrypt files on your hard drive with Mailvelope and send encrypted email attachments. Mailvelope makes integrating security into your workflow seamless.

It comes preconfigured for common webmail providers like:

But we also support other email providers or web applications which can be activated in Mailvelope with a one-click configuration step. For details, visit www.mailvelope.com/help.

Mailvelope is open source and based on OpenPGP.js, an OpenPGP library for JavaScript. The OpenPGP standard (based on PGP as originally developed by Phil Zimmermann) uses a combination of strong public key and symmetric encryption to secure electronic communication.

Follow us on Twitter: twitter.com/mailvelope Get the source code on GitHub: github.com/mailvelope/mailvelope Find the latest changelog at: github.com/mailvelope/mailvelope/blob/master/Changelog.md

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Easy to setup
  • User-friendly experience
  • Works well with Gmail
Cons
  • Concerns about privacy permissions
  • Issues with GPG integration on Linux
  • Limited functionality with Yahoo and Outlook
Most mentioned
  • Permission concerns
  • Integration issues with GPG on Linux
  • Functionality problems with Yahoo and Outlook
User reviews
by Lothar Geiss, 2025-01-13
by Ulrich Trepte, 2025-01-10
by Firefox user 18762528, 2025-01-03
View all user reviews

Add-on safety

Risk impact

Mailvelope requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk likelihood

Mailvelope has earned a fairly good reputation and likely can be trusted.

Upgrade to see risk analysis details