Package: firefox-esr Version: 115.13.0esr-1 Firefox does not generate SSLKEYLOGFILE when the variable is exported. I'm running firefox in headless mode.
The problem is present for both firefox and firefox-es on Debian unstable and testing, for at least amd64 and arm64 architectures. Debian stable generates SSLKEYLOGFILE as expected. To reproduce, build the following Dockerfile, with ``` docker build --build-arg=CACHEBURST=$(date +%s) --progress=plain --tag sslkeylogfile . ``` Dockerfile ``` FROM debian:unstable RUN apt-get update && apt-get install -y firefox-esr ARG CACHEBURST=0 RUN apt-cache policy firefox-esr RUN dpkg -l firefox-esr RUN export SSLKEYLOGFILE=/tmp/SSLKEYLOGFILE && echo SSLKEYLOGFILE is empty > /tmp/SSLKEYLOGFILE && firefox --version && firefox --headless --screenshot /tmp/screenshot.png https://www.google.com && echo $SSLKEYLOGFILE && cat $SSLKEYLOGFILE CMD sleep infinity ``` Output (from Debian unstable) ``` #7 [3/5] RUN apt-cache policy firefox-esr #7 1.394 firefox-esr: #7 1.397 Installed: 115.13.0esr-1 #7 1.397 Candidate: 115.13.0esr-1 #7 1.397 Version table: #7 1.397 *** 115.13.0esr-1 500 #7 1.401 500 http://deb.debian.org/debian unstable/main amd64 Packages #7 1.401 100 /var/lib/dpkg/status #7 DONE 1.4s #8 [4/5] RUN dpkg -l firefox-esr #8 0.548 Desired=Unknown/Install/Remove/Purge/Hold #8 0.548 | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend #8 0.548 |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) #8 0.548 ||/ Name Version Architecture Description #8 0.548 +++-==============-=============-============-============================================================ #8 0.548 ii firefox-esr 115.13.0esr-1 amd64 Mozilla Firefox web browser - Extended Support Release (ESR) #8 DONE 0.6s #9 [5/5] RUN export SSLKEYLOGFILE=/tmp/SSLKEYLOGFILE && echo SSLKEYLOGFILE is empty > /tmp/SSLKEYLOGFILE && firefox --version && firefox --headless --screenshot /tmp/screenshot.png https://www.google.com && echo $SSLKEYLOGFILE && cat $SSLKEYLOGFILE #9 0.589 Mozilla Firefox 115.13.0esr #9 0.644 *** You are running in headless mode. #9 0.943 [GFX1-]: glxtest: libpci missing #9 0.943 [GFX1-]: glxtest: Unable to open a connection to the X server #9 0.943 [GFX1-]: No GPUs detected via PCI #9 0.943 #9 4.129 /tmp/SSLKEYLOGFILE #9 4.130 SSLKEYLOGFILE is empty ``` Expected output (taken from Debian stable): ``` #7 [4/6] RUN apt-cache policy firefox-esr #7 1.176 firefox-esr: #7 1.176 Installed: 115.13.0esr-1~deb12u1 #7 1.176 Candidate: 115.13.0esr-1~deb12u1 #7 1.176 Version table: #7 1.176 *** 115.13.0esr-1~deb12u1 500 #7 1.176 500 http://deb.debian.org/debian-security stable-security/main amd64 Packages #7 1.176 100 /var/lib/dpkg/status #7 1.176 115.12.0esr-1~deb12u1 500 #7 1.180 500 http://deb.debian.org/debian stable/main amd64 Packages #7 DONE 1.2s #8 [5/6] RUN dpkg -l firefox-esr #8 0.666 Desired=Unknown/Install/Remove/Purge/Hold #8 0.666 | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend #8 0.666 |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) #8 0.666 ||/ Name Version Architecture Description #8 0.666 +++-==============-=====================-============-============================================================ #8 0.666 ii firefox-esr 115.13.0esr-1~deb12u1 amd64 Mozilla Firefox web browser - Extended Support Release (ESR) #8 DONE 0.8s #9 [6/6] RUN export SSLKEYLOGFILE=/tmp/SSLKEYLOGFILE && echo SSLKEYLOGFILE is empty > /tmp/SSLKEYLOGFILE && firefox --version && firefox --headless --screenshot /tmp/screenshot.png https://www.google.com && echo $SSLKEYLOGFILE && cat $SSLKEYLOGFILE #9 0.672 Mozilla Firefox 115.13.0esr #9 0.728 *** You are running in headless mode. #9 1.039 [GFX1-]: glxtest: libpci missing #9 1.039 [GFX1-]: glxtest: Unable to open a connection to the X server #9 1.039 [GFX1-]: No GPUs detected via PCI #9 1.039 #9 4.387 /tmp/SSLKEYLOGFILE #9 4.387 SSLKEYLOGFILE is empty #9 4.387 CLIENT_HANDSHAKE_TRAFFIC_SECRET ... ... ```
