High strength symmetric encryption for your favorite email, plus real-time secure chat

Latest Version

Version
4.3
Update
November 26, 2024
Size
154KiB
Developer
passlok.com/ursa
Category
Users
11
Rating
0 ★
Manifest Version
3
Web Store Status
Languages Support
English (United States)
See more
Permissions
See more

URSA Privacy Extension

URSA sits near your tray bar to provide secure and easy symmetric encryption of text, images, and files. This is the process:

1. Click the bear icon to load URSA into a new tab.
2. Type the secret key into the top box. The recipient must know this key.
3. Type your message, possibly containing rich formatting, images, and even files into the large box, then click Encrypt.

The recipient will decrypt the encrypted message, which can be sent by email or some other means without fear of its being decrypted, by typing the same key, pasting the encrypted message, and clicking Decrypt.

If you feel really paranoid, URSA can encrypt into a cover image, so that it cannot be detected that anything is there. The image looks the same after the secret data have been injected.

URSA can also disguise its output so it appears to be normal text.

If you find yourself exchanging frequent messages with someone, you can switch into real-time chat, which can include text, files, audio, and even video!

URSA's main encryption algorithm is XSalsa20, included within the NaCl encryption library. This algorithm has extensively been vetted by experts for over ten years without flaws being found. There are also two experimental algorithms: Pad, which uses a large piece of text (from a book, or a webpage) as key and is theoretically unbreakable, and Human, which can be performed by hand if necessary.

URSA is fully compatible with PassLok Privacy, its larger sibling, also in this Web store. PassLok adds several asymmetric encryption modes, as well as secret splitting and digital signatures. There is also a web app at https://passlok.com/ursa

You can check the integrity of the web version of URSA with this data:
Current version of URSA is: 4.3

SHA256 of the single-file version, which can be downloaded from the above link:
62ac-893d-a6df-edfc-dbd9-a849-5404-5b13-6701-d0da-87c2-8d0b-bc44-5153-742b-96b0

See the developer reading this on video: https://www.youtube.com/watch?v=nzTyfvgrHgc
Read more

Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "URSA Privacy", "short_name": "URSA", "description": "High strength symmetric encryption for your favorite email, plus real-time secure chat", "version": "4.3", "manifest_version": 3, "icons": { "16": "ursa-icon16.png", "48": "ursa-icon48.png", "128": "ursa-icon128.png" }, "content_security_policy": { "extension_pages": "default-src 'self'; img-src 'self' data:; connect-src 'self' data:; style-src 'self'" }, "background": { "service_worker": "background.js" }, "action": { "default_icon": { "16": "ursa-icon16gray.png", "48": "ursa-icon48gray.png" }, "default_title": "URSA Privacy" }}
Read more

How to download and manually install URSA Privacy extension for Chrome

Looking for a way to install URSA Privacy 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 URSA Privacy extensions manually, this article outlines two simple methods to effortlessly install URSA Privacy extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

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

If you ever need to manually install a URSA Privacy 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 URSA Privacy Extension by clicking the "Download CRX" button on the website.

Look for the URSA Privacy extension you wish to install. Go to the website and download the URSA Privacy extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for URSA Privacy 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 URSA Privacy 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 URSA Privacy extension for Chrome and install in Developer Mode

This is another method to install URSA Privacy 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 URSA Privacy extension file

Select and download the URSA Privacy 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 URSA Privacy 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 URSA Privacy 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 URSA Privacy 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 URSA Privacy extension in 2 ways. We hope this guide proves helpful.

Similar Extensions

icon

Doublespeak Extension · Social & Communication 11 0 ★ 32.18KiB

icon

PassLok Universal Extension · Productivity 11 0 ★ 224KiB

icon

FusionKey Extension · Productivity 11 0 ★ 264KiB

icon

SeeOnce Privacy Extension · Social & Communication 11 1 ★ 135KiB

icon

Anti Rebind Extension · Productivity 11 0 ★ 52.75KiB

icon

PassLok Privacy Extension · Productivity 11 13 ★ 265KiB

icon

EnshieldMe Extension · Developer Tools 11 2 ★ 621KiB

icon

SynthPass Extension · Productivity 11 1 ★ 94.65KiB

icon

Secure Google Chat Extension · Social & Communication 11 0 ★ 152KiB

icon

popupCrypt Extension · Productivity 11 2 ★ 22.66KiB

icon

BrGP for Chrome Extension · Social & Communication 11 2 ★ 301KiB

icon

Inline PGP Extension · Social & Communication 11 3 ★ 3.48MiB

icon

Grd Me Extension · Social & Communication 11 1 ★ 1.07MiB

icon

PassLok for Email Extension · Productivity 11 2 ★ 202KiB

icon

Keen Debugger Extension · Developer Tools 11 0 ★ 12.25KiB

icon

AnyCrypt Extension · Social & Communication 11 2 ★ 1.13MiB

icon

console.sparkline Extension · Developer Tools 11 1 ★ 4.7KiB

icon

OctoLenses Extension · Developer Tools 11 3 ★ 3.74MiB

icon

Encrypted Messenger Extension · Social & Communication 11 2 ★ 20.93KiB

icon

AE Encrypt Extension · Developer Tools 11 5 ★ 56.53KiB

icon

GitHub Enhancement Suite Extension · Developer Tools 11 1 ★ 56.24KiB

icon

Libraries.io | GitHub Companion Extension · Productivity 11 3 ★ 1.31MiB

icon

secretchat.site Extension · Social & Communication 11 2 ★ 379KiB

icon

File Guard (Encryptor | Decryptor) Extension · Productivity 11 2 ★ 26.96KiB