Buttercup

Buttercup

Manage your online identities and credentials with Buttercup: An open-source, free and secure credentials manager.

Buttercup promo image
What is Buttercup?

'Buttercup' is a Firefox add-on that manages your online identities and credentials. It is a free, open-source, and secure credentials manager that uses strong encryption techniques. Users can store their details in various customizable locations such as My Buttercup, Google Drive, Dropbox, and WebDAV or local files (via the Desktop app). Save new logins securely in secure archives. Enjoy full control over your vault's content, with functionalities for creating and editing different item types. Note: not supported on Android platforms.

Merlin
Stats
By: MadDev
Users: 585 ▼ -15
Rating: 4.55 (22)
Version: 2.26.0 (Last updated: 2023-11-08)
Creation date: 2017-03-15
Weekly download count: 23
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
Permissions:
  • clipboardWrite
  • contextMenus
  • http://*/*
  • https://*/*
  • storage
  • tabs
  • unlimitedStorage
Size: 2.19M
Stats date:

Other platforms

Buttercup
Buttercup (v2.26.0)
4.00 (25) 4,436
Not available on Edge
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Merlin
Summary

Manage your online identities and credentials with Buttercup: An open-source, free and secure credentials manager. Buttercup uses the strongest industry techniques to encrypt and store your details in a variety of locations of your choosing. Use My Buttercup, Google Drive, Dropbox, WebDAV or local files (via the Desktop app) to remotely or locally access your vault. Save new logins to your secure archives.

The vault management interface allows for full control over your vault's contents, so it can even be used as a stand-alone application. Create and edit different item types (logins, websites, credit-cards, notes etc.) and even attach securely-encrypted files.

Please note that this extension does not support Android platforms.

User reviews
User reviews summary
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
  • Great password manager
  • Open-source
  • Customizable storage options
  • Multiplatform support
  • Supports team and individual vaults
Cons
  • Lacks synchronization between desktop and extension versions
  • Issues with loading ownCloud space
Most mentioned
  • Password manager
  • Open-source
  • Customizable storage
  • Support for Nextcloud, Owncloud, Dropbox, Webdav
  • Needs firefox mobile support
View all user reviews
Safety
Risk impact

Buttercup is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Buttercup if you trust the publisher.

Risk likelihood

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

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Screenshots