diff --git a/scripts/Windows/Config/Firefox/Install.ps1 b/scripts/Windows/Config/Firefox/Install.ps1
index 5b62a1fe..4a6fba84 100644
--- a/scripts/Windows/Config/Firefox/Install.ps1
+++ b/scripts/Windows/Config/Firefox/Install.ps1
@@ -1,22 +1,7 @@
 #!/bin/pwsh
-param($context)
-
-. "$PSScriptRoot/../../Scripts/Context.ps1";
-
-[Context] $context = $context;
-$tempDir = $context.GetTempDirectory();
-
-Push-Location $tempDir;
-$configFile = "$tempDir/DefaultAssociations.xml";
-
-Write-Information "Making Firefox the default browser";
-DISM /Online "/Export-DefaultAppAssociations:$configFile";
-
-[xml]$defaultAssociations = [xml]::new();
-$defaultAssociations.PreserveWhitespace = $true;
-$reader = [System.Xml.XmlReader]::Create("$configFile", $readerSettings);
-$defaultAssociations.Load($reader);
-$reader.Dispose();
+. "$PSScriptRoot/../../Scripts/AppAssociations.ps1";
+$progIdSuffix = "-308046B0AF4A39CB";
+$appName = "Firefox";
 
 $extensions = @(
     ".htm",
@@ -32,24 +17,10 @@ $schemes = @(
     "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";
-    }
+foreach ($extension in $extensions) {
+    Set-DefaultAppAssociation $extension "FirefoxHTML$progIdSuffix" $appName;
 }
 
-$defaultAssociations.Save($configFile);
-DISM /Online "/Import-DefaultAppAssociations:$configFile";
-
-Pop-Location;
-Remove-Item -Recurse $tempDir;
+foreach ($scheme in $schemes) {
+    Set-DefaultAppAssociation $scheme "FirefoxURL$progIdSuffix" $appName;
+}