diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index 813b5a7..8a5d644 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -19,8 +19,11 @@
 - `yarn test:demo-video` - UI recording (requires Xvfb, mosquitto, tmux, ffmpeg)
 - `yarn test:mcp` - Model Context Protocol tests
 - `yarn test:all` - All tests (unit + demo-video)
+- `./scripts/runBrowserTests.sh` - Browser mode UI tests (requires mosquitto service)
 
-**CI jobs:** `test`, `ui-tests`, `demo-video`, `test-browser`
+**CI jobs:** `test`, `ui-tests`, `demo-video`, `test-browser`, `browser-ui-tests`
+
+**Important:** Browser UI tests require MQTT broker. In CI, GitHub Actions health checks ensure the mosquitto service is ready before tests run.
 
 ## Browser Mode
 
diff --git a/.github/workflows/docker-browser.yml b/.github/workflows/docker-browser.yml
index f565a7f..20fa97e 100644
--- a/.github/workflows/docker-browser.yml
+++ b/.github/workflows/docker-browser.yml
@@ -45,6 +45,8 @@ jobs:
           --health-interval 10s
           --health-timeout 5s
           --health-retries 5
+          --entrypoint sh
+        cmd: -c "mkdir -p /mosquitto/config && echo 'listener 1883' > /mosquitto/config/mosquitto.conf && echo 'allow_anonymous true' >> /mosquitto/config/mosquitto.conf && exec mosquitto -c /mosquitto/config/mosquitto.conf"
 
     steps:
       - name: Checkout repository
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index b20822b..0450952 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -31,20 +31,12 @@ jobs:
     env:
       TESTS_MQTT_BROKER_HOST: localhost
       TESTS_MQTT_BROKER_PORT: 1883
-    services:
-      mosquitto:
-        image: eclipse-mosquitto:2
-        ports:
-          - 1883:1883
-        options: >-
-          --health-cmd "mosquitto_sub -t '$SYS/#' -C 1"
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
     steps:
       - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
+      - name: Start mosquitto
+        run: mosquitto -c /etc/mosquitto/conf.d/default.conf -d
       - name: Install Packages
         run: yarn install --frozen-lockfile
       - name: Build Browser Mode
@@ -71,20 +63,12 @@ jobs:
     env:
       TESTS_MQTT_BROKER_HOST: localhost
       TESTS_MQTT_BROKER_PORT: 1883
-    services:
-      mosquitto:
-        image: eclipse-mosquitto:2
-        ports:
-          - 1883:1883
-        options: >-
-          --health-cmd "mosquitto_sub -t '$SYS/#' -C 1"
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
     steps:
       - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
+      - name: Start mosquitto
+        run: mosquitto -c /etc/mosquitto/conf.d/default.conf -d
       - name: Install Packages
         run: yarn install --frozen-lockfile
       - name: Build
@@ -200,6 +184,8 @@ jobs:
           --health-interval 10s
           --health-timeout 5s
           --health-retries 5
+          --entrypoint sh
+        cmd: -c "mkdir -p /mosquitto/config && echo 'listener 1883' > /mosquitto/config/mosquitto.conf && echo 'allow_anonymous true' >> /mosquitto/config/mosquitto.conf && exec mosquitto -c /mosquitto/config/mosquitto.conf"
     steps:
       - uses: actions/checkout@v4
         with:
diff --git a/Dockerfile b/Dockerfile
index f8d4667..80c85e9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,6 +10,12 @@ ENV LANG en_US.UTF-8
 ENV LANGUAGE en_US:en
 ENV LC_ALL en_US.UTF-8
 
+# Configure mosquitto for anonymous access (required for tests)
+RUN mkdir -p /etc/mosquitto/conf.d && \
+    echo "listener 1883" > /etc/mosquitto/conf.d/default.conf && \
+    echo "allow_anonymous true" >> /etc/mosquitto/conf.d/default.conf && \
+    echo "persistence false" >> /etc/mosquitto/conf.d/default.conf
+
 # Install Playwright and browsers
 # This ensures Playwright browsers are pre-installed in the container
 RUN npm install -g playwright@1.57.0 && \