Firejail fails with "too long environment variables"

Good day,
I have programs.firejail.enable=true set in my configuration however when i try to run, for example, firejail firefox, I get an error stating

Error: too long environment variables, please use --rmenv

From the man page, the --rmenv flag is used to remove a specific environment variable, however, Im unsure which one(s) to remove. Any help would be appreciated

Update:
I did some investigating and realized that specifically the following environment variables are the issue:

  • XDG_DATA_DIRS which contains 18217 chracaters. Snippet
/nix/store/6qciynnpzbxbxvknzafwgg4lfp3h0i0m-konsole-21.04.0/share:/nix/store/xacprfsps52z4y345kb7ikxgvyw997dx-knewstuff-5.81.0/share:/nix/store/m9vdl0izsf9ffg3a0yvnqps5wlyhhakf-kpackage-5.81.0/share:/nix/store/2fi03imjksi3nr0kl1blbkzacyv0g3mc-kpackage-5.81.0-bin/share:/nix/store/k0159z503v1hkn7w97098rp37r1iz8qf-kirigami2-5.81.0/share:/nix/store/hl4yb3fl3hiih4qi1nln7kwxrl0mp7s7-kpty-5.81.0/share:/nix/store/w730fpc1dj19rf6ry0x45scp4v0dxd1z-kparts-5.81.0/share:/nix/store/qzwfrna75lw1650sras8kxgsbqfkyhfm-kparts-5.81.0-bin/share:/nix/store/ahkmncxakl59x6il5kxv20si6dnp22fy-knotifyconfig-5.81.0/share:/nix/store/n5xg5g8pjn191rw3kdql6vs762wcyl65-kinit-5.81.0/share:/nix/store/5hr5xaxfpvfw0zss4vij256h72dgymwc-kwallet-5.81.0/share:/nix/store/acwwlniyfc43i4nv35yg2j1nj56grqyx-kwallet-5.81.0-bin/share:/nix/store/z4cwxdq9573pyjcfj86byi473x28cpyz-knotifications-5.81.0/share:/nix/store/70986qc3wxmbjs7qax9ka0mlzc2gn7ny-knotifications-5.81.0-bin/share:/nix/store/b2gjjhlic3zaaiydy6q03lm4zsg92abr-solid-5.81.0/share:/ni 
  • QML2_IMPORT_PATH which contains 5893 characters
/nix/store/fwmm1pvg74ajijwdhn401b0m9vdfx0la-knewstuff-5.81.0-bin/lib/qt-5.15.2/qml:/nix/store/k0159z503v1hkn7w97098rp37r1iz8qf-kirigami2-5.81.0/lib/qt-5.15.2/qml:/nix/store/hbzpwa68vwz762m00fnypr794f426yzz-qtgraphicaleffects-5.15.2/lib/qt-5.15.2/qml:/nix/store/x3fk82mlnrcdkq4k78dfa2cszg61spgi-qtquickcontrols2-5.15.2-bin/lib/qt-5.15.2/qml:/nix/store/wrzk8qf9hg18bbvymf2mlzmzmw5dx7h1-solid-5.81.0-bin/lib/qt-5.15.2/qml:/nix/store/si44xd5cwvjxa8yiapi7lqpbvhiagqsr-qtwayland-5.15.2-bin/lib/qt-5.15.2/qml:/nix/store/0xzzbcpa83fj119gf94kmxl7852c4wq4-qtquickcontrols-5.15.2/lib/qt-5.15.2/qml:/ni
  • QT_PLUGIN_PATH which contains 10979 characters
/nix/store/6qciynnpzbxbxvknzafwgg4lfp3h0i0m-konsole-21.04.0/lib/qt-5.15.2/plugins:/nix/store/9061biwjgjqp0y3hgbkzydw8i659442y-kio-5.81.0/lib/qt-5.15.2/plugins:/nix/store/cbpi6d5zpx9dmj0a53qhqjw8pnqbg6q5-phonon-4.11.1/lib/qt-5.15.2/plugins:/nix/store/61alx6ch9w80kp9hv1wnk25hh8j8kq4r-kxmlgui-5.81.0-bin/lib/qt-5.15.2/plugins:/nix/store/yg1fa67wvcc94rl9zl4zc223j8lqqih6-ktextwidgets-5.81.0-bin/lib/qt-5.15.2/plugins:/nix/store/6bm8bni2762689xwm6dlq0j780iflx5w-kcompletion-5.81.0/lib/qt-5.15.2/plugins:/nix/store/f877qfi41l3fp4d8qzy40868dq4p8ajv-sonnet-5.81.0-bin/lib/qt-5.15.2/plugins:/nix/store/3qa7z24dpjz3zdnzc2s3vnp696cskl16-kglobalaccel-5.81.0/lib/qt-5.15.2/plugins:/nix/store/x599in4sf3ss04p8m1ybsrxw9y11yr7i-kwindowsystem-5.81.0/lib/qt-5.15.2/plugins:/nix/store/cl3yp6q530ajdnji5l6maql5gibpwdci-kiconthemes-5.81.0-bin/lib/qt-5.15.2/plugins:/nix/store/jfiwbcj5nkydzzkp6hkxj38hcj0r5zkx-kitemviews-5.81.0/lib/qt-5.15.2/plugins:/ni
  • XDG_CONFIG_DIRS which contains about 1430 characters
/nix/store/9061biwjgjqp0y3hgbkzydw8i659442y-kio-5.81.0/etc/xdg:/nix/store/07lq8c21fl59hcfzpi8i49pdhw8wmnps-kservice-5.81.0-bin/etc/xdg:/nix/store/61alx6ch9w80kp9hv1wnk25hh8j8kq4r-kxmlgui-5.81.0-bin/etc/xdg:/nix/store/07lq8c21fl59hcfzpi8i49pdhw8wmnps-kservice-5.81.0-bin/etc/xdg:/nix/store/9061biwjgjqp0y3hgbkzydw8i659442y-kio-5.81.0/etc/xdg:/nix/store/61alx6ch9w80kp9hv1wnk25hh8j8kq4r-kxmlgui-5.81.0-bin/etc/xdg:/nix/store/6wp36jywdmdnq0akzp6zpd1hpsxvsqdc-plasma-workspace-5.21.5/etc/xdg:/nix/store/5v104c70ninvmndd73f4ns01aqg3xix3-kdelibs4support-5.81.0/etc/xdg:/nix/store/kykb1s7r2419cjy6mprcsm20w39xwa61-baloo-5.81.0-bin/etc/xdg:/nix/store/07lq8c21fl59hcfzpi8i49pdhw8wmnps-kservice-5.81.0-bin/etc/xdg:/nix/store/9061biwjgjqp0y3hgbkzydw8i659442y-kio-5.81.0/etc/xdg:/nix/sto

I am using kde plasma and the issue only appears when I am in a graphical session. If i log into another tty, the issue disappears. Furthermore, after creating a new user, I have the same issue in a graphical session while it works in a tty. Therefore, the issue is most likely in the system configuration.

My configuration is quite simple, (the file below is sanitized)

#configuration.nix
{ config, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
      ./packages.nix
    ];

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot = {
    enable = true;
    consoleMode="max";
  };
  boot.loader.efi.canTouchEfiVariables = true;

  networking.hostName = "MYNAME"; # Define your hostname.
  networking.networkmanager.enable=true;
  #networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

  networking.wireless.networks={
     "NETWORK".psk="PASSWORD"; # note that this doesnt work
  };

  # Set your time zone.
  time.timeZone = "America/Port_of_Spain";

  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
  # Per-interface useDHCP will be mandatory in the future, so this generated config
  # replicates the default behaviour.
  networking.useDHCP = false;
  networking.interfaces.enp3s0.useDHCP = true;
  networking.interfaces.wlp0s20f0u6.useDHCP = true;

  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.UTF-8";
  console = {
    #font = "Lat2-Terminus16";
    keyMap = "us";
  };
  i18n.inputMethod = {
    enabled="ibus";
  };

  # Enable the X11 windowing system.
  services.xserver.enable = true;


  # Enable the Plasma 5 Desktop Environment.
  services.xserver.displayManager.sddm.enable = true;
  services.xserver.desktopManager.plasma5.enable = true;


  # Enable CUPS to print documents.
  services.printing.enable = true;

  # Enable sound.
  sound.enable = true;
  hardware.pulseaudio.enable = true;

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users = {
     myname={
        isNormalUser=true;
        group="myname";

        extraGroups=["wheel" "extra_drives" "networkmanager"];
     };
     mytester={
        isNormalUser=true;
     };
  };
  users.groups = {
     myname={};
     extra_drives={
#         gid=1001;
     };
  };

  environment.variables = {
     EDITOR="nvim";
  };

  system.stateVersion = "21.05"; # Did you read the comment?

}
#packages.nix
{
config, lib, pkgs, ...
}:{
  environment.systemPackages = with pkgs;[
    neovim
    wget
    firefox
    git 
    borgbackup
    ark

    mpv
    elisa

    kate
    libreoffice
    gwenview
    okular
    copyq
    gimp
    vscodium

    octave
    texlive.combined.scheme-medium
    sage

    whatsapp-for-linux

    pavucontrol


    multimc

    virt-manager-qt
  ];

  programs.droidcam.enable=true;

  fonts.fonts=with pkgs;[
     lmodern
     ubuntu_font_family
  ];

  boot.kernelModules = ["kvm-intel"];
  virtualisation.libvirtd.enable = true;

  services.gnome.glib-networking.enable = true;
  
  programs.firejail = {
    enable=true;
    wrappedBinaries = with pkgs;{
        coolfox = {
            executable="${lib.getBin firefox}/bin/firefox";
            profile="${firejail}/etc/firejail/firefox.profile";
        };
    };
  };

}
#hardware-configuration.nix
{ config, lib, pkgs, modulesPath, ... }:

{
  imports =
    [ (modulesPath + "/installer/scan/not-detected.nix")
    ];

  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usbhid" "usb_storage" "sd_mod" ];
  boot.initrd.kernelModules = [ ];
  boot.kernelModules = [ "kvm-intel" ];
  boot.extraModulePackages = [ ];

  fileSystems."/" =
    { device = "/dev/disk/by-uuid/<omitted>";
      fsType = "ext4";
    };

  fileSystems."/boot" =
    { device = "/dev/disk/by-uuid/<omitted>";
      fsType = "vfat";
    };

  fileSystems."/media/Data" =
    { device = "/dev/disk/by-uuid/<omitted>";
      fsType = "ext4";
    };

  swapDevices = [ ];

  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
}