diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 26b19ca..931bda6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -61,7 +61,6 @@ variables:
   - postman
   - signal
   - steam
-  - tracelabs
   - ubuntu-focal-dind
   - ubuntu-focal-dind-rootless
   - ubuntu-jammy-dind
@@ -189,7 +188,6 @@ build_non_ubuntu:
     - ls docs/$KASM_IMAGE/description.txt
     # Set base image based on kasm_image variable
     - if [[ $KASM_IMAGE =~ 'centos-7-desktop' ]]; then CORE_IMAGE=core-centos-7; fi
-    - if [[ $KASM_IMAGE =~ 'tracelabs' ]]; then CORE_IMAGE=core-kali-rolling; fi
     - if [[ $KASM_IMAGE =~ 'oracle-7-desktop' ]]; then CORE_IMAGE=core-oracle-7; fi
     - if [[ $KASM_IMAGE =~ 'oracle-8-desktop' ]]; then CORE_IMAGE=core-oracle-8; fi
     - if [[ $KASM_IMAGE =~ 'opensuse-15-desktop' ]]; then CORE_IMAGE=core-opensuse-15; fi
@@ -207,7 +205,7 @@ build_non_ubuntu:
     - aws-autoscale
   parallel:
     matrix:
-      - KASM_IMAGE: [centos-7-desktop, tracelabs, opensuse-15-desktop, oracle-7-desktop, oracle-8-desktop]
+      - KASM_IMAGE: [centos-7-desktop, opensuse-15-desktop, oracle-7-desktop, oracle-8-desktop]
 
 build_games:
   stage: build
@@ -248,7 +246,6 @@ build_multi_arch_dev:
     - ls docs/$KASM_IMAGE/description.txt
     # Set core image names
     - if [[ $KASM_IMAGE =~ 'centos-7-desktop' ]]; then CORE_IMAGE=core-centos-7; fi
-    - if [[ $KASM_IMAGE =~ 'tracelabs' ]]; then CORE_IMAGE=core-kali-rolling; fi
     - if [[ $KASM_IMAGE =~ 'oracle-7-desktop' ]]; then CORE_IMAGE=core-oracle-7; fi
     - if [[ $KASM_IMAGE =~ 'oracle-8-desktop' ]]; then CORE_IMAGE=core-oracle-8; fi
     - if [[ $KASM_IMAGE =~ 'opensuse-15-desktop' ]]; then CORE_IMAGE=core-opensuse-15; fi
@@ -281,7 +278,6 @@ build_multi_arch_dev2:
     - ls docs/$KASM_IMAGE/description.txt
     # Set core image names
     - if [[ $KASM_IMAGE =~ 'centos-7-desktop' ]]; then CORE_IMAGE=core-centos-7; fi
-    - if [[ $KASM_IMAGE =~ 'tracelabs' ]]; then CORE_IMAGE=core-kali-rolling; fi
     - if [[ $KASM_IMAGE =~ 'oracle-7-desktop' ]]; then CORE_IMAGE=core-oracle-7; fi
     - if [[ $KASM_IMAGE =~ 'oracle-8-desktop' ]]; then CORE_IMAGE=core-oracle-8; fi
     - if [[ $KASM_IMAGE =~ 'opensuse-15-desktop' ]]; then CORE_IMAGE=core-opensuse-15; fi
@@ -314,7 +310,6 @@ build_single_arch_dev:
     - ls docs/$KASM_IMAGE/description.txt
     # Set core image names
     - if [[ $KASM_IMAGE =~ 'centos-7-desktop' ]]; then CORE_IMAGE=core-centos-7; fi
-    - if [[ $KASM_IMAGE =~ 'tracelabs' ]]; then CORE_IMAGE=core-kali-rolling; fi
     - if [[ $KASM_IMAGE =~ 'oracle-7-desktop' ]]; then CORE_IMAGE=core-oracle-7; fi
     - if [[ $KASM_IMAGE =~ 'oracle-8-desktop' ]]; then CORE_IMAGE=core-oracle-8; fi
     - if [[ $KASM_IMAGE =~ 'opensuse-15-desktop' ]]; then CORE_IMAGE=core-opensuse-15; fi
@@ -623,7 +618,6 @@ build_schedules_non_ubuntu:
     - ls docs/$KASM_IMAGE/description.txt
     # Set base image based on kasm_image variable
     - if [[ $KASM_IMAGE =~ 'centos-7-desktop' ]]; then CORE_IMAGE=core-centos-7; fi
-    - if [[ $KASM_IMAGE =~ 'tracelabs' ]]; then CORE_IMAGE=core-kali-rolling; fi
     - if [[ $KASM_IMAGE =~ 'oracle-7-desktop' ]]; then CORE_IMAGE=core-oracle-7; fi
     - if [[ $KASM_IMAGE =~ 'oracle-8-desktop' ]]; then CORE_IMAGE=core-oracle-8; fi
     - if [[ $KASM_IMAGE =~ 'opensuse-15-desktop' ]]; then CORE_IMAGE=core-opensuse-15; fi
@@ -639,7 +633,7 @@ build_schedules_non_ubuntu:
     - aws-autoscale
   parallel:
     matrix:
-      - KASM_IMAGE: [centos-7-desktop, tracelabs, opensuse-15-desktop, oracle-7-desktop, oracle-8-desktop]
+      - KASM_IMAGE: [centos-7-desktop, opensuse-15-desktop, oracle-7-desktop, oracle-8-desktop]
 
 build_schedules_games:
   image: ${ORG_NAME}/docker-buildx-private:develop
@@ -726,7 +720,6 @@ update_readmes:
           - terminal
           - thunderbird
           - tor-browser
-          - tracelabs
           - ubuntu-focal-desktop
           - ubuntu-jammy-desktop
           - ubuntu-focal-dind
diff --git a/README.md b/README.md
index ae2ac9b..4a2afb2 100644
--- a/README.md
+++ b/README.md
@@ -42,3 +42,4 @@ A self-guided on-demand demo is available at [**kasmweb.com**](https://www.kasmw
 
 [logo]: https://cdn2.hubspot.net/hubfs/5856039/dockerhub/kasm_logo.png "Kasm Logo"
 [Kasm_Workflow]: https://cdn2.hubspot.net/hubfs/5856039/dockerhub/kasm_workflow_960.gif "Kasm Workflow"
+
diff --git a/src/ubuntu/install/firefox/install_firefox.sh b/src/ubuntu/install/firefox/install_firefox.sh
index ed55d63..9831ed0 100644
--- a/src/ubuntu/install/firefox/install_firefox.sh
+++ b/src/ubuntu/install/firefox/install_firefox.sh
@@ -27,6 +27,7 @@ Pin-Priority: 1001
   fi
   apt-get install -y firefox p11-kit-modules
 else
+  apt-get update
   apt-mark unhold firefox
   apt-get remove firefox
   apt-get update
diff --git a/src/ubuntu/install/retroarch/install_retroarch.sh b/src/ubuntu/install/retroarch/install_retroarch.sh
index 0a71c94..4119e29 100644
--- a/src/ubuntu/install/retroarch/install_retroarch.sh
+++ b/src/ubuntu/install/retroarch/install_retroarch.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -ex
 SCRIPT_PATH="$( cd "$(dirname "$0")" ; pwd -P )"
-add-apt-repository -y ppa:libretro/testing
+add-apt-repository -y ppa:libretro/stable
 apt-get update
 apt-get install -y retroarch
 cp /usr/share/applications/retroarch.desktop $HOME/Desktop/