Good evening!
On Linux Mint 21 I installed without any problems, but on ubuntu 22.04 and 22.10 I had the same problem. In the case of ubuntu, as of version 22.04, the firefox browser is distributed in snap format. I suspect the cause is the files being in different locations.
As a workaround, I removed firefox snap and installed firefox .deb and it worked perfectly. Below are the commands to install on ubuntu 22.04 or 21.10 (works on based distributions):
Prerequisites:
Update:
sudo apt update && apt upgrade -y
Install Java (openJDK)
sudo apt install default-jre -y
sudo apt install default-jdk -y
Install packages
sudo apt install software-properties-common apt-transport-https wget curl build-essential xterm libnss3-tools openssl -y
Install Packages (x86)
sudo dpkg --add-architecture i386
sudo apt install libx11-6:i386 libc6:i386 libncurses5:i386 libstdc++6:i386 libstdc++5:i386 libpam0g:i386 -y
sudo apt install binutils-multiarch binutils-multiarch-dev -y
Remove firefox Snap:
sudo snap remove --purge firefox
Install firefox (.deb)
sudo add-apt-repository ppa:mozillateam/ppa
sudo apt update
sudo apt install --target-release 'o=LP-PPA-mozillateam' firefox
Adjust repository priority for firefox
sudo cat << EOF | sudo tee -a /etc/apt/preferences.d/mozillateamppa
Package: firefox*
Pin: release o=LP-PPA-mozillateam
Pin Priority: 501
EOF
Run the scripts
./snx_install.sh
./cshell_install.sh
Access the VPN through chrome (I always do it) and accept the certificate.
Hope this helps.