FireFox Compatibility
Fire Fox Quantum Version 61.0.1 TLS 1.3
Identify your Firefox version:
With the update to Version 61.0.1 Firefox made some changes on the fallback version
of the TLS encryption. In some cases, the installer is not able to establish a
HTTPS connection to the panel web server.
Identify your Firefox version:
Click in the icon
Go to help
Click on “About Firefox”


Change the fallback value:
Type “about:config” into the addressbar
search for "tls"
change the value of "security.tls.version.fallback-limit" to “3”.
The value "4" indicates TLS1.3 and needs to be changed to "3" which is TLS1.2
save and reload the SPC webpage to run again.

Like to know more?
SPC provides a range of manuals in order to support you if you would like to know please contact us and book your demo
- SPC Overview
- Getting Started
- Monitoring Solution
- SPC Access features
- SPC Communications
- SPC Connect – The Remote access cloud solution from Vanderbilt Industries
- SPC Peripherals
- SPC Users
- SPC Variants and limits
- VDS C – APPROVAL OF COMPONENTS AND SYSTEMS
- SPC Intrusion Features
- Verification Audio Video
- Advanced Programming
- SPC 3.9 – Wirelesss
- Solutions and integrations
- Welcome to SPC Migration guide
- Cannot find what you need, please let us know