Mailvelope Firefox

Mailvelope

Protect your email conversations and attachments on Gmail, Nextcloud, Outlook and more with PGP and end-to-end encryption.

Features & Capabilities

Mailvelope is a powerful Chrome extension that enables PGP-based end-to-end encryption for emails and attachments across many popular webmail platforms including Gmail, Outlook, Yahoo, Nextcloud, and others. It offers a free solution for private users and an advanced Mailvelope Business edition tailored for organizations needing enhanced security and compliance support.

Key features include seamless integration into existing webmail workflows, secure local key management, compliance with GDPR and other data privacy regulations, and open-source transparency. Mailvelope supports easy encrypting and decrypting directly in the browser, ensuring that only intended recipients can read your messages. Businesses benefit from Mailvelope Business with premium capabilities and managed key servers. This extension is ideal for individuals and teams wanting to protect their sensitive email communication effortlessly.

User Growth & Download Statistics

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:
Mailvelope GmbH
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/mailvelope/
Email:
su*****@mailvelope.com
Website:
https://mailvelope.com/help

Permission Change History

2025-05-30: Version 5.2.0 → 6.1.0
Add Host permissions: *://*/*
Add Permissions: alarms scripting
Remove Permissions: *://*/* dns nativeMessaging
Add Optional permissions: nativeMessaging
2022-11-08: Version 4.6.1 → 4.7.0
Add Permissions: identity
2022-06-20: Version 4.2.3 → 4.6.0
Add Permissions: dns

User Reviews

Users find Mailvelope offers an easy and painless PGP experience with good Linux GnuPG support once configured. However, multiple reviews highlight poor documentation and manual setup steps for Linux integration. The extension replaces default webmail editors, which can be inconvenient, and requests broad browser permissions, causing privacy concerns among users.
Pros
  • Easy to set up and use, providing a painless PGP experience.
  • Supports integration with native GnuPG on Linux.
  • Recommended by some email providers like GMX for encryption.
Cons
  • Poor or unclear documentation on Linux installation and GnuPG integration.
  • Requires manual configuration steps on Linux to enable native GnuPG integration.
  • Replaces the default editor of webmailers, limiting user experience.
  • Requests extensive browser permissions that raise privacy concerns.
Recent reviews
удобнее не придумаешь
by Fi*****, 2026-04-15

by Em*****, 2026-02-18

by Si*****, 2026-01-24
View all user reviews ›

Is Mailvelope 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.

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

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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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.

Mailvelope is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • Medium This extension has medium user count. Unpopular extensions may not be stable or safe.
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Best Mailvelope Alternatives

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