IGEL Linux v5 IGEL Linux v5 How-Tos Deploying Trusted Root Certificates Current: Installing Certificates Manually PDF Download PDF Download page Installing Certificates Manually. Current page Include child pages All pages Installing Certificates Manually Use the Firefox Certificate Manager for installing web browser certificates.For Java Runtime Environment certificates use the Java Manager from the IGEL setup.Also a USB flash drive can be used for the manual import.._____ Importing SSL Certificates (ICA, RDP, Horizon) Installing Web Browser Certificates Installing JRE Certificates ×