diff --git a/core/util/runPlaywright.js b/core/util/runPlaywright.js
index 3018bae24..200728004 100644
--- a/core/util/runPlaywright.js
+++ b/core/util/runPlaywright.js
@@ -33,10 +33,12 @@ module.exports.createPlaywrightBrowser = async function (config) {
     return;
   }
 
+  const headless = typeof config.debugWindow === "string" ? config.debugWindow : !config.debugWindow;
+
   const playwrightArgs = Object.assign(
     {},
     {
-      headless: !config.debugWindow
+      headless: headless
     },
     config.engineOptions
   );
diff --git a/core/util/runPuppet.js b/core/util/runPuppet.js
index d513fa918..a7b147b6c 100644
--- a/core/util/runPuppet.js
+++ b/core/util/runPuppet.js
@@ -67,11 +67,13 @@ async function processScenarioView (scenario, variantOrScenarioLabelSafe, scenar
   const VP_W = viewport.width || viewport.viewport.width;
   const VP_H = viewport.height || viewport.viewport.height;
 
+  const headless = typeof config.debugWindow === "string" ? config.debugWindow : !config.debugWindow;
+
   const puppeteerArgs = Object.assign(
     {},
     {
       ignoreHTTPSErrors: true,
-      headless: !config.debugWindow
+      headless: headless
     },
     config.engineOptions
   );