Browser extension for Buttercup, the secure and easy-to-use password manager.

Latest Version

Version
3.2.0
Update
April 11, 2024
Size
3.24MiB
Developer
buttercup.pw
Category
Users
4,000+
Rating
3.55263 ★
Manifest Version
3
Web Store Status
Languages Support
English (UK)
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Permissions
ClipboardWrite
Storage
Tabs
UnlimitedStorage
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Buttercup Extension

Manage your online identities and credentials with Buttercup: An open-source, free and secure password manager. Buttercup uses the strongest industry techniques to encrypt and store your details in a variety of locations of your choosing. Use Dropbox, Google Drive or a WebDAV connection to remotely host your archive for high accessibility. You can also connect local files - all via the Buttercup desktop application (required for this extension).

Buttercup's browser extension allows you to easily log in to all of your online profiles and sites, is extremely secure, is easy to use and completely free of charge. We collect no data about you or any activities you perform. Keep your master password safe as it is the only way to open your archive and access your credentials.

Newly detected logins will cause the extension to prompt you to save them - add all of your online authentication details to keep your accounts safe!
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "Buttercup", "description": "Browser extension for Buttercup, the secure and easy-to-use password manager.", "version": "3.2.0", "icons": { "16": "manifest-res/buttercup-16.png", "48": "manifest-res/buttercup-48.png", "128": "manifest-res/buttercup-128.png", "256": "manifest-res/buttercup-256.png" }, "background": { "service_worker": "background.js" }, "action": { "default_title": "Buttercup", "default_icon": "manifest-res/buttercup-256.png", "default_popup": "/popup.html#/" }, "content_scripts": [ { "matches": [ "http://*/*", "https://*/*" ], "run_at": "document_end", "all_frames": true, "js": [ "tab.js" ] } ], "permissions": [ "clipboardWrite", "storage", "tabs", "unlimitedStorage" ], "web_accessible_resources": [ { "resources": [ "*.png", "*.jpg" ], "matches": [ "http://*/*", "https://*/*" ] }, { "resources": [ "popup.html" ], "matches": [ "http://*/*", "https://*/*" ] } ]}
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How to download and manually install Buttercup extension for Chrome

Looking for a way to install Buttercup extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Buttercup extensions manually, this article outlines two simple methods to effortlessly install Buttercup extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Buttercup extension and manually install through Drag &Drop

If you ever need to manually install a Buttercup extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Buttercup Extension by clicking the "Download CRX" button on the website.

Look for the Buttercup extension you wish to install. Go to the website and download the Buttercup extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Buttercup extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Buttercup extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Buttercup extension for Chrome and install in Developer Mode

This is another method to install Buttercup extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Buttercup extension file

Select and download the Buttercup extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Buttercup extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Buttercup extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Buttercup extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Buttercup extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Mohamed (ID: 00000058f3cb9522) Voted 5 ★ - Updated 08/31/2022 Very well done. Zero problems.

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Dominik Morse (ID: 000000799e6ccdf3) Voted 5 ★ - Updated 10/20/2021 Great password manager

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Lokman Afandy (ID: 00000003ac56c280) Voted 3 ★ - Updated 07/15/2021 it is great but need importer for extensions so people can migrate easily

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M Shah Omar (ID: 000000de573a16f7) Voted 1 ★ - Updated 05/21/2021 CPU load always peak whenever this plugin enabled. using chrome Version 90.0.4430.212 (Official Build) (x86_64)

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S Abraham (ID: 0000008593eac38c) Voted 5 ★ - Updated 03/04/2021 I was struggling to find a decent KeePass extension. They all appear to be outdated and don't quite work. Buttercup was suggested. It's a GREAT replacement for LastPass on the desktop. Apps for Apple, Android, not as great depending on your preferences. It's not constantly running in the background, autofilling passwords with one tap. It appears that you actually have to open the app, find the username/password you need, then copy and paste. So, if you don't have as many needs on mobile (and you may not - so many of my services use biometrics, I only need this for the outliers!), Buttercup seems to be a good alternative.