diff --git a/.dictionary b/.dictionary
index a22aa1e955..7f70d53525 100644
--- a/.dictionary
+++ b/.dictionary
@@ -203,7 +203,6 @@ ons
 os
 perl
 plist
-podman
 powershell
 ppa
 pre
diff --git a/taskcluster/docker/flatpak/Dockerfile b/taskcluster/docker/flatpak/Dockerfile
deleted file mode 100644
index 794add128f..0000000000
--- a/taskcluster/docker/flatpak/Dockerfile
+++ /dev/null
@@ -1,43 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-FROM debian:bookworm
-
-MAINTAINER Naomi Kirby <naomi@mozilla.com>
-
-#----------------------------------------------------------------------------------------------------------------------
-#-- Extra Packages ----------------------------------------------------------------------------------------------------
-#----------------------------------------------------------------------------------------------------------------------
-ENV CURL='curl --location --retry 5' \
-    DEBIAN_FRONTEND='noninteractive' \
-    LANG='en_US.UTF-8' \
-    TERM='dumb'
-
-RUN apt-get update \
-    && apt-get install -y tzdata \
-    && apt-get install -y debhelper \
-                          devscripts \
-                          equivs \
-                          flatpak \
-                          flatpak-builder \
-                          gpg-agent \
-                          locales \
-                          software-properties-common \
-                          yq \
-    && apt-get clean
-
-RUN locale-gen "$LANG"
-
-#----------------------------------------------------------------------------------------------------------------------
-#-- Task Setup --------------------------------------------------------------------------------------------------------
-#----------------------------------------------------------------------------------------------------------------------
-
-# %include taskcluster/scripts/build/linux_build_flatpak.sh
-ADD topsrcdir/taskcluster/scripts/build/linux_build_flatpak.sh /root/builder.sh
-# %include taskcluster/scripts/toolchain/bundle_flatpak_sdk.sh
-ADD topsrcdir/taskcluster/scripts/toolchain/bundle_flatpak_sdk.sh /root/bundle_sdk.sh
-
-# Running the container builds a flatpak
-WORKDIR /build/workdir
-CMD /root/builder.sh
diff --git a/taskcluster/kinds/build/flatpak.yml b/taskcluster/kinds/build/flatpak.yml
deleted file mode 100644
index 99b6d7d009..0000000000
--- a/taskcluster/kinds/build/flatpak.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
----
-linux/flatpak:
-    description: "Linux Build (Flatpak)"
-    treeherder:
-        symbol: B
-        kind: build
-        tier: 1
-        platform: linux/flatpak
-    dependencies:
-        build: build-source/vpn
-        docker-image: build-docker-image-flatpak
-    fetches:
-        build:
-            - artifact: mozillavpn-sources.tar.gz
-        toolchain:
-            - flatpak-sdks
-        docker-image:
-            - artifact: image.tar.zst
-              extract: false
-    worker-type: b-linux-generic
-    worker:
-        max-run-time: 3600
-        chain-of-trust: true
-        artifacts:
-            - type: directory
-              name: public/build/
-              path: public/build/
-    run:
-        using: run-task
-        use-caches: true
-        command: $VCS_PATH/taskcluster/scripts/podman-worker.py /root/builder.sh
diff --git a/taskcluster/kinds/build/kind.yml b/taskcluster/kinds/build/kind.yml
index fb665681d4..3a38d847e9 100644
--- a/taskcluster/kinds/build/kind.yml
+++ b/taskcluster/kinds/build/kind.yml
@@ -26,4 +26,3 @@ tasks-from:
     - wasm.yml
     - ios.yml
     - addons.yml
-    - flatpak.yml
diff --git a/taskcluster/kinds/docker-image/kind.yml b/taskcluster/kinds/docker-image/kind.yml
index cc74a1746c..d616a8d70e 100644
--- a/taskcluster/kinds/docker-image/kind.yml
+++ b/taskcluster/kinds/docker-image/kind.yml
@@ -37,9 +37,6 @@ tasks:
         symbol: I(wasm)
         args:
             QT_VERSION: 6.2.4
-    flatpak:
-        symbol: I(flatpak)
-        definition: flatpak
     linux-qt6-build:
         parent: base
         symbol: I(linux-qt6-build)
diff --git a/taskcluster/kinds/toolchain/flatpak.yml b/taskcluster/kinds/toolchain/flatpak.yml
deleted file mode 100644
index d4812c7ace..0000000000
--- a/taskcluster/kinds/toolchain/flatpak.yml
+++ /dev/null
@@ -1,31 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
----
-task-defaults:
-    worker:
-        max-run-time: 3600
-        chain-of-trust: true
-    worker-type: b-linux-generic
-    dependencies:
-        docker-image: build-docker-image-flatpak
-    fetches:
-        docker-image:
-            - artifact: image.tar.zst
-              extract: false
-    run:
-        resources:
-            - taskcluster/scripts/podman-worker.py
-            - linux/flatpak/*
-
-flatpak-sdks:
-    description: "Flatpak Bundle SDKs"
-    treeherder:
-        symbol: TL(flatpak-sdks)
-    run:
-        use-caches: true
-        script: toolchain_podman_worker.sh
-        arguments:
-            - '/root/bundle_sdk.sh'
-        toolchain-alias: flatpak-sdks
-        toolchain-artifact: public/build/flatpak-sdks.tar.xz
diff --git a/taskcluster/kinds/toolchain/kind.yml b/taskcluster/kinds/toolchain/kind.yml
index 3affd59d64..38cd0dba85 100644
--- a/taskcluster/kinds/toolchain/kind.yml
+++ b/taskcluster/kinds/toolchain/kind.yml
@@ -28,5 +28,4 @@ tasks-from:
     - conda_android.yml
     - conda_windows.yml
     - conda_osx.yml
-    - flatpak.yml
     - cargo.yml
diff --git a/taskcluster/scripts/build/linux_build_flatpak.sh b/taskcluster/scripts/build/linux_build_flatpak.sh
deleted file mode 100755
index f481f1d813..0000000000
--- a/taskcluster/scripts/build/linux_build_flatpak.sh
+++ /dev/null
@@ -1,44 +0,0 @@
-#!/bin/bash
-
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-set -e
-
-# Find the app-id and manifest in the mounted source directory.
-FLATPAK_APP_ID=
-FLATPAK_APP_MANIFEST=
-for srcfile in $(find ${MOZ_FETCHES_DIR} -name '*.yml') $(find ${MOZ_FETCHES_DIR} -name '*.yaml'); do
-    if yq -e '."app-id"' $srcfile &> /dev/null; then
-        FLATPAK_APP_ID=$(yq -re '."app-id"' $srcfile)
-        FLATPAK_APP_MANIFEST="$srcfile"
-    fi
-done
-if [ -z "$FLATPAK_APP_ID" ] || [ -z "$FLATPAK_APP_MANIFEST" ]; then
-    echo "Failed to locate flatpak manifest in $MOZ_FETCHES_DIR" >&2
-    exit 1
-fi
-
-# Setup the remotes.
-flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
-flatpak remote-modify --collection-id=org.flathub.Stable flathub
-
-echo "Installing Dependencies"
-FLAPTAK_SIDELOAD=$(find ${MOZ_FETCHES_DIR} -type d -name '.ostree' -printf '%p/repo\n')
-if [ -d "${FLAPTAK_SIDELOAD}" ]; then
-    # Install all packages found in the sideload repo.
-    flatpak install --sideload-repo=${FLAPTAK_SIDELOAD} --noninteractive \
-        $(flatpak remote-ls file://${FLAPTAK_SIDELOAD} --columns=ref | tail -n +1)
-else
-    # Download from flathub
-    flatpak-builder --install-deps-from=flathub --install-deps-only /tmp/fp-build-dir ${FLATPAK_APP_MANIFEST}
-fi
-
-echo "Building the Flatpak"
-flatpak-builder fp-build-dir ${FLATPAK_APP_MANIFEST}
-
-echo "Exporting the Flatpak"
-mkdir fp-export-dir
-flatpak build-export fp-export-dir fp-build-dir
-flatpak build-bundle fp-export-dir ${UPLOAD_DIR}/${FLATPAK_APP_ID}.flatpak ${FLATPAK_APP_ID}
diff --git a/taskcluster/scripts/podman-worker.py b/taskcluster/scripts/podman-worker.py
deleted file mode 100755
index 76df434827..0000000000
--- a/taskcluster/scripts/podman-worker.py
+++ /dev/null
@@ -1,93 +0,0 @@
-#!/usr/bin/env python3
-
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-import json
-import os
-import subprocess
-import sys
-import tempfile
-import urllib.parse
-import urllib.request
-
-def get_task_payload():
-    rootUrl = os.environ.get("TASKCLUSTER_ROOT_URL", "https://firefox-ci-tc.services.mozilla.com")
-    taskUrl = urllib.parse.urljoin(rootUrl, f'api/queue/v1/task/{os.environ.get("TASK_ID")}')
-    with urllib.request.urlopen(taskUrl) as req:
-        return json.load(req)["payload"]
-
-def get_artifact_path(payload):
-    for entry in payload.get('artifacts', []):
-        if entry.get('type') == 'directory' and entry.get('name') == 'public/build':
-            return entry['path']
-    
-    return 'public/build'
-
-# Load the podman image and return its description in JSON
-def load_podman_image(path):
-    # Load the image and try to grab the tag.
-    tag = None
-    args = ['podman', 'load', '-i', path]
-    with subprocess.Popen(args, stdout=subprocess.PIPE, stderr=sys.stderr, text=True) as proc:
-        for line in proc.stdout:
-            print(f'{line}') # Foreward to stdout
-            if line.startswith('Loaded image'):
-                i = line.index(':')
-                if i > 0:
-                    tag = line[i+1:].strip()
-
-    # Describe the podman image. 
-    x = subprocess.run(['podman', 'image', 'inspect', tag], stdout=subprocess.PIPE, stderr=sys.stderr)
-    return json.loads(x.stdout)[0]
-
-moz_fetches_dir = os.path.realpath(os.environ.get("MOZ_FETCHES_DIR"))
-task_workdir = os.environ.get("TASK_WORKDIR")
-
-# Load the podman image.
-image_filename = os.path.join(moz_fetches_dir, 'image.tar.zst')
-print(f"Loading podman image from: {image_filename}")
-sys.stdout.flush()
-image_data = load_podman_image(image_filename)
-
-# Prepare the task arguments
-task_payload = get_task_payload()
-worker_env = task_payload["env"]
-worker_env["TASK_WORKDIR"] = image_data["Config"].get("WorkingDir", "/")
-worker_args = ['podman', 'run', '--rm', '--privileged']
-
-# Mount the source checkouts at /mnt/checkouts
-vcs_path = os.path.join(task_workdir, os.environ.get("VCS_PATH"))
-worker_args.append(f"--volume={vcs_path}:/mnt/checkouts:ro")
-worker_env["VCS_PATH"] = '/mnt/checkouts'
-
-# Mount the fetches dir at /mnt/fetches
-worker_args.append(f"--volume={moz_fetches_dir}:/mnt/fetches:ro")
-worker_env["MOZ_FETCHES_DIR"] = '/mnt/fetches'
-
-# Mount the artifacts at /mnt/artifacts
-artifact_dir = os.path.join(task_workdir, get_artifact_path(task_payload))
-os.makedirs(artifact_dir, exist_ok=True)
-worker_args.append(f"--volume={artifact_dir}:/mnt/artifacts:rw")
-worker_env["UPLOAD_DIR"] = '/mnt/artifacts'
-
-# Propagate the task environment into the container, while tweaking paths.
-worker_env_file = tempfile.NamedTemporaryFile(mode='w+', prefix='env-', suffix='.txt', encoding='utf-8')
-for key in worker_env:
-    print(f'{key}={worker_env[key]}', file=worker_env_file)
-worker_env_file.flush()
-worker_args.append(f'--env-file={worker_env_file.name}')
-
-# Last argument should be the image name followed by the script arguments.
-worker_args.append(image_data["Id"])
-worker_args.extend(sys.argv[1:])
-
-# Run the requested task in the container
-if len(image_data["RepoTags"]) > 0:
-    print(f'Running podman image: {image_data["RepoTags"][0]}')
-else:
-    print(f'Running podman image: {image_data["Id"]}')
-sys.stdout.flush()
-x = subprocess.run(worker_args, stdout=sys.stdout, stderr=sys.stderr)
-sys.exit(x.returncode)
diff --git a/taskcluster/scripts/toolchain/bundle_flatpak_sdk.sh b/taskcluster/scripts/toolchain/bundle_flatpak_sdk.sh
deleted file mode 100755
index 63ba500fe4..0000000000
--- a/taskcluster/scripts/toolchain/bundle_flatpak_sdk.sh
+++ /dev/null
@@ -1,40 +0,0 @@
-#!/bin/bash
-
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-# Find the app-id and manifest in the mounted source directory.
-FLATPAK_APP_ID=
-FLATPAK_APP_MANIFEST=
-for srcfile in $(find ${VCS_PATH} -maxdepth 3 -name '*.yml') $(find ${VCS_PATH} -maxdepth 3  -name '*.yaml'); do
-    if yq -e '."app-id"' $srcfile &> /dev/null; then
-        FLATPAK_APP_ID=$(yq -re '."app-id"' $srcfile)
-        FLATPAK_APP_MANIFEST="$srcfile"
-    fi
-done
-if [ -z "$FLATPAK_APP_ID" ] || [ -z "$FLATPAK_APP_MANIFEST" ]; then
-    echo "Failed to locate flatpak manifest in $MOZ_FETCHES_DIR" >&2
-    exit 1
-fi
-
-# Setup the flathub remote.
-flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
-flatpak remote-modify --collection-id=org.flathub.Stable flathub
-
-# Install flatpak dependencies
-flatpak-builder --install-deps-from=flathub --install-deps-only /tmp/fp-build-dir ${FLATPAK_APP_MANIFEST}
-
-# Export the runtimes
-mkdir flatpak-sdks
-for REF in $(flatpak list --runtime --columns=ref | tail -n +1); do
-    # If this runtime includes extra data - it can't be installed offline.
-    if flatpak info -m ${REF} | grep -q '\[Extra Data\]'; then
-        echo "Ignoring runtime ${REF} as it contains Extra Data" >&2
-        continue
-    fi
-    flatpak create-usb flatpak-sdks ${REF}
-done
-
-# Compress the result.
-tar -cJf ${UPLOAD_DIR}/flatpak-sdks.tar.xz flatpak-sdks
diff --git a/taskcluster/scripts/toolchain/toolchain_podman_worker.sh b/taskcluster/scripts/toolchain/toolchain_podman_worker.sh
deleted file mode 100755
index 17139d653c..0000000000
--- a/taskcluster/scripts/toolchain/toolchain_podman_worker.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/bin/bash
-
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-# Toolchain tasks need to provide a script in the taskcluster/scripts/toolchain
-# directory and any kind of relative path shenanigans break the file hashing.
-# I think this is really a bug in taskcluster, but let's work around it for now
-# by just wrapping a call to the real podman-worker.py
-$(dirname $0)/../podman-worker.py "$@"