Set Firefox as the default browser

scripts/Windows/Software/Firefox/Install.ps1

@@ -3,6 +3,57 @@
 
 function Install-Firefox {
     param([Context] $context)
+
+    $tempDir = $context.GetTempDirectory();
+    $configFile = "DefaultAssociations.xml";
+    Push-Location $tempDir;
+
     Write-Host "Installing Firefox";
     choco install -y firefox;
+
+    Write-Information "Making Firefox the default browser";
+    DISM /Online "/Export-DefaultAppAssociations:DefaultAssociations.xml";
+
+    [xml]$defaultAssociations = [xml]::new();
+    $defaultAssociations.PreserveWhitespace = $true;
+    $reader = [System.Xml.XmlReader]::Create("$drive\Autounattend.template.xml", $readerSettings);
+    $defaultAssociations.Load($reader);
+
+    $extensions = @(
+        ".htm",
+        ".html",
+        ".mht",
+        ".mhtml",
+        ".svg",
+        ".xht",
+        ".xhtml"
+    );
+
+    $schemes = @(
+        "ftp",
+        "http",
+        "https"
+    );
+
+    foreach ($association in $defaultAssociations.SelectNodes("/DefaultAssociations/Association")) {
+        [string] $className = $null;
+
+        if (($extensions + $schemes) -contains $association.Identifier) {
+            $association.ApplicationName = "Firefox";
+
+            if ($extensions -contains $association.Identifier) {
+                $className = "FirefoxHTML";
+            } else {
+                $className = "FirefoxURL";
+            }
+
+            $association.ProgId = "$className-308046B0AF4A39CB"
+        }
+    }
+
+    $defaultAssociations.Save($configFile);
+    DISM /Online "/Import-DefaultAppAssociations:$configFile";
+
+    Pop-Location;
+    Remove-Item -Recurse $tempDir;
 }