diff --git a/.github/workflows/test-addons.yml b/.github/workflows/test-addons.yml
index f0e5d43..b709c3f 100644
--- a/.github/workflows/test-addons.yml
+++ b/.github/workflows/test-addons.yml
@@ -73,29 +73,35 @@ jobs:
         if: runner.os == 'Linux' && startsWith(matrix.pyqt, '6')
         run: |
           sudo apt-get update
-          sudo apt-get install -y libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 libxcb-xfixes0 libegl1-mesa libxcb-shape0
+          sudo apt-get install -y libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 libxcb-xfixes0 libegl1-mesa libxcb-shape0 libxcb-cursor0
 
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
           python -m pip install --upgrade tox
-          
-      - name: Set environment variable
-        # this step sets QT_QPA_PLATFORM env which is mandatory on Linux and
-        # it is skipped on Windows since it produces SEGFAULT when WebView used
-        if: runner.os != 'Windows'
-        run: |
-          echo "QT_QPA_PLATFORM=offscreen" >> $GITHUB_ENV
 
-      - name: Set Ubuntu eviroment variables
-        # on Ubuntu QTWEBENGINE_CHROMIUM_FLAGS needs to be set for webview to work 
-        if: runner.os == 'Linux'
+      - name: Test with Tox at Ubuntu
+        if: matrix.os == 'ubuntu-latest'
         run: |
-          echo "QTWEBENGINE_CHROMIUM_FLAGS=--disable-gpu --no-sandbox" >> $GITHUB_ENV
+          catchsegv xvfb-run -a -s "$XVFBARGS" tox -e ${{ matrix.tox_env }}
+        env:
+          # Set pyqt and webengine versions.
+          PYQT_PYPI_NAME: "${{ startsWith(matrix.pyqt, '5')  && 'PyQt5' || 'PyQt6' }}"
+          PYQT_PYPI_VERSION: ${{ matrix.pyqt }}
+          WEBENGINE_PYPI_NAME: "${{ startsWith(matrix.pyqt, '5')  && 'PyQtWebEngine' || 'PyQt6-WebEngine' }}"
+          WEBENGINE_PYPI_VERSION: ${{ matrix.pyqt }}
 
-      - name: Test with Tox
-        run: |
-          tox -e ${{ matrix.tox_env }}
+          # Need this otherwise unittest installs a warning filter that overrides
+          # our desire to have OrangeDeprecationWarnings raised
+          PYTHONWARNINGS: module
+          # for xvfb at Ubuntu
+          XVFBARGS: "-screen 0 1280x1024x24"
+          # on Ubuntu QTWEBENGINE_CHROMIUM_FLAGS needs to be set for webview to work 
+          QTWEBENGINE_CHROMIUM_FLAGS: "--disable-gpu --no-sandbox"
+
+      - name: Test with Tox at other systems
+        if: matrix.os != 'ubuntu-latest'
+        run: tox -e ${{ matrix.tox_env }}
         env:
           # Set pyqt and webengine versions.
           PYQT_PYPI_NAME: "${{ startsWith(matrix.pyqt, '5')  && 'PyQt5' || 'PyQt6' }}"