diff --git a/.github/workflows/browser-beta.yml b/.github/workflows/browser-beta.yml
index 34bfbcc32..6fd0cc174 100644
--- a/.github/workflows/browser-beta.yml
+++ b/.github/workflows/browser-beta.yml
@@ -49,6 +49,6 @@ jobs:
         chrome --version
         firefox --version
     - name: Test Chrome Beta
-      run: ./bin/browsertime.js -b chrome -n 1 https://www.sitespeed.io --connectivity.profile cable --connectivity.engine throttle --xvfb --chrome.binaryPath $(which chrome)
+      run: ./bin/browsertime.js -b chrome -n 1 https://www.sitespeed.io --xvfb --chrome.binaryPath $(which chrome)
     - name: Test Firefox Beta
-      run: ./bin/browsertime.js -b firefox -n 1 https://www.sitespeed.io --connectivity.profile cable --connectivity.engine throttle --xvfb
+      run: ./bin/browsertime.js -b firefox -n 1 https://www.sitespeed.io --xvfb
diff --git a/.github/workflows/browser-dev.yml b/.github/workflows/browser-dev.yml
index a45d5bffa..18a6c2cb7 100644
--- a/.github/workflows/browser-dev.yml
+++ b/.github/workflows/browser-dev.yml
@@ -49,6 +49,6 @@ jobs:
         chrome --version
         firefox --version
     - name: Test Chrome dev
-      run: ./bin/browsertime.js -b chrome -n 1 https://www.sitespeed.io --connectivity.profile cable --connectivity.engine throttle --xvfb --chrome.binaryPath $(which chrome)
+      run: ./bin/browsertime.js -b chrome -n 1 https://www.sitespeed.io --xvfb --chrome.binaryPath $(which chrome)
     - name: Test Firefox dev
-      run: ./bin/browsertime.js -b firefox -n 1 https://www.sitespeed.io --connectivity.profile cable --connectivity.engine throttle --xvfb
\ No newline at end of file
+      run: ./bin/browsertime.js -b firefox -n 1 https://www.sitespeed.io --xvfb
\ No newline at end of file
diff --git a/.github/workflows/linux-firefox-throttle.yml b/.github/workflows/linux-firefox-throttle.yml
new file mode 100644
index 000000000..16b0bfb26
--- /dev/null
+++ b/.github/workflows/linux-firefox-throttle.yml
@@ -0,0 +1,46 @@
+name: Linux browsers Firefox throttle
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+    branches:
+    - main
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+    steps:
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+    - name: Use Node.js
+      uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6
+      with:
+        node-version: '24.x'
+        cache: 'npm'
+    - name: Install Firefox
+      uses: browser-actions/setup-firefox@fcf821c621167805dd63a29662bd7cb5676c81a8 # latest
+      with:
+        firefox-version: '149.0'
+    - name: Install Browsertime
+      run: npm ci
+    - name: Install ffmpeg
+      uses: AnimMouse/setup-ffmpeg@ae28d57dabbb148eff63170b6bf7f2b60062cbae # v1.2.3
+      with:
+        version: '7.1'
+    - name: Set up Python
+      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
+      with:
+        python-version: '3.12'
+        cache: 'pip'
+    - name: Install dependencies
+      run: |
+        sudo apt-get install net-tools -y
+        python -m pip install --upgrade pip setuptools==70.0.0 pyssim OpenCV-Python Numpy virtualenv
+        sudo modprobe ifb numifbs=1
+    - name: Browser versions
+      run: |
+        firefox --version
+    - name: Start local HTTP server
+      run: (npm run start-server&)
+    # - run: VTENV_OPTS="-p python3" make test
+    - name: Test Firefox with throttle
+      run: ./bin/browsertime.js -b firefox -n 1 http://127.0.0.1:3000/simple/ --connectivity.profile cable --connectivity.engine throttle --xvfb
diff --git a/.github/workflows/linux-firefox.yml b/.github/workflows/linux-firefox.yml
index 1e0dd7502..bdec72a40 100644
--- a/.github/workflows/linux-firefox.yml
+++ b/.github/workflows/linux-firefox.yml
@@ -61,8 +61,8 @@ jobs:
     - name: Start local HTTP server
       run: (npm run start-server&)
     # - run: VTENV_OPTS="-p python3" make test
-    - name: Test Firefox with throttle
-      run: ./bin/browsertime.js -b firefox -n 1 http://127.0.0.1:3000/simple/ --connectivity.profile cable --connectivity.engine throttle --xvfb --firefox.collectMozLog
+    - name: Test Firefox with collectMozLog
+      run: ./bin/browsertime.js -b firefox -n 1 http://127.0.0.1:3000/simple/ --xvfb --firefox.collectMozLog
     - name: Test multi pages
       run: ./bin/browsertime.js -b firefox test/data/navigationscript/multi.cjs http://127.0.0.1:3000/search/ -n 1 --xvfb
     - name: Test Firefox Geckoprofiler