How to Activate Verbose Logging of the Authentication Process in Firefox
Environment
Firefox running on a Linux operating system
1. Preparation
Close all instances of Firefox and make sure (ie with ps) there is no Firefox process running.
2. Configuration
Open a terminal window and enter the following commands:
export NSPR_LOG_MODULES=negotiateauth:5
export NSPR_LOG_FILE=/tmp/firefox-auth.log
3. Using
Restart Firefox from that shell and start browsing.
Information about the authentication process will be logged to the file /tmp/firefox-auth.log