Create Github action to test browser build

.github/workflows/browser.yml

@@ -0,0 +1,50 @@
+# Attempt to build the whole browser
+name: Browser
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push or pull request events but only for the main branch
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+
+  # Test applying playwright patches and installing dependencies
+  patch:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Install Dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y   \
+               curl                 \
+               python3              \
+               python3-pip          \
+               python3-venv         \
+               tar                  \
+               zip                  \
+               unzip                \
+               git
+          python3 -m pip install setuptools
+
+      - name: Checkout release branch
+        uses: actions/checkout@v3
+
+      - name: Dry Run
+        run: |
+          cp taintfox_mozconfig_ubuntu .mozconfig
+          bash build.sh -p -n
+
+      - name: Build
+        run: |
+          bash build.sh -s -v
+
+      - name: Package
+        run: |
+          bash build.sh -s -u