Installing-OpenSC-PKCS11-Module-in-Firefox,-Step-by-Step.md

Installing OpenSC PKCS#11 Module in Firefox, Step by Step

1. Start Mozilla Firefox.

   

2. Click the Menu Button and choose Options.

   

3. Open Security Devices

   • For Firefox Release 55 and below, click Advanced and switch to the Certificates tab. Click Security Devices.

     

   • For Firefox Release 56 and up, click Privacy & Security, scroll down and click Security Devices.

     

4. Click on Load.

   

5. Change the Module Name to OpenSC PKCS#11 Module. Click on Browse...*.

   

6. Select the installation directory.

   Platform	Directory Path
   Windows 32 Bit	C:\Program Files\OpenSC Project\OpenSC\pkcs11
   Windows 64 Bit with Firefox 64 Bit	C:\Program Files\OpenSC Project\OpenSC\pkcs11
   Windows 64 Bit with Firefox 32 Bit	C:\Program Files (x86)\OpenSC Project\OpenSC\pkcs11
   macOS	/Library/OpenSC/lib/
   macOS (installation with brew)	/usr/local/Cellar/opensc/[VERSION]/lib/pkcs11/
   Linux	/usr/lib/

   Click on opensc‑pkcs11.dll (Windows) or opensc‑pkcs11.so (Linux, macOS). Click Open.

   

7. Verify the new module is loaded. Click OK to close the Device Manager.