Firefox on IGEL Linux 5.07.100 warns of an SSL/TLS error in appliance mode that does not occur in normal window mode. The error code is ssl_error_unsupported_version. This does not happen on IGEL Linux 5.06.x.
You cannot connect to the affected HTTPS service.
As a workaround you can instruct Firefox to ignore issues with SSL/TLS versions:
- In IGEL Setup, go to System > Firmware Customization > Custom Commands > Base Commands
- Enter the following command into the After Session Configuration input field:
echo "clearPref(\"security.tls.version.min\");" >> /services/fbrw/firefox/firefox.cfg
There is also an IGEL Linux private build that addresses this issue.