Microsoft S/MIME

Microsoft S/MIME

Performs S/MIME digital signing, encryption and decryption for email messages in Outlook on the web.

Microsoft S/MIME is available to install from Edge Add-on Store and for download from this page. It has 895,397 weekly active users The latest version is 20.20.514.1, and it was published 3 months ago.

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Total download count: 0 (Only count downloads from EdgeStats)
Install Microsoft S/MIME from Edge Add-on Store
All available versions

You can find the current and older versions of Microsoft S/MIME here. You can download the archived versions or inspect their source codes.

As a free user, you can only download the latest version. Subscribe to the paid version of EdgeStats to access more available versions.

Version Download Size Download count Timestamp
20.20.514.1 Sign in to download 55.57K 0 2023-07-05
How to install Microsoft S/MIME from a CRX file
Option 1: The easy way (for Windows users only)
  1. Download and run allow-chrome-stats.reg file on your PC. This method will allow you to install Chrome extensions directly from in one click. You only need to do this once!
  2. Type in chrome://restart in the URL bar to restart the browser for the changes to take effect.
  3. Download and install the Microsoft S/MIME CRX file
Option 2: Advanced method
  1. Download Microsoft S/MIME CRX file
  2. NOTE: Sometimes the browser may block downloading / installing CRX file from outside the Edge Add-on Store. If so, you may need to use option 1, or download the ZIP file instead.
  3. In the URL bar, go to edge://extensions
  4. Enable Developer mode
  5. Drag and drop the downloaded Microsoft S/MIME CRX file into the Extensions page
  6. When prompted, click Add extension to install Microsoft S/MIME.
How to install Microsoft S/MIME from a ZIP file
  1. Download and unpack the Microsoft S/MIME ZIP file to a directory of your choice.
  2. In Edge browser, go to edge://extensions
  3. Enable Developer mode.
  4. Click on the Load Unpacked button.
  5. Select the directory of with the unpacked Microsoft S/MIME ZIP file from step 1. Microsoft S/MIME is now installed on your browser.