diff --git a/packages/browser/src/client/orchestrator.ts b/packages/browser/src/client/orchestrator.ts
index 75ecd6a8ce58..c44c4d791e29 100644
--- a/packages/browser/src/client/orchestrator.ts
+++ b/packages/browser/src/client/orchestrator.ts
@@ -366,7 +366,7 @@ export class IframeOrchestrator {
     iframe.style.setProperty('border', 'none')
     iframe.style.setProperty('background-color', '#fff')
     iframe.style.setProperty('width', 'var(--viewport-width)')
-    iframe.style.setProperty('height', 'var(--viewport-height)')
+    iframe.style.setProperty('height', 'var(--inner-height, var(--viewport-height))')
 
     // enable scaling only when using the UI, without UI the iframe fills the page
     if (config.browser.ui) {
diff --git a/packages/browser/src/client/tester/expect/toMatchScreenshot.ts b/packages/browser/src/client/tester/expect/toMatchScreenshot.ts
index c714b9e7bf85..ea763ef34807 100644
--- a/packages/browser/src/client/tester/expect/toMatchScreenshot.ts
+++ b/packages/browser/src/client/tester/expect/toMatchScreenshot.ts
@@ -40,6 +40,11 @@ export default async function toMatchScreenshot(
     : `${this.currentTestName} ${counter.current}`
 
   const isPageTarget = isBrowserPage(actual)
+  const isFullPage = isPageTarget && options.screenshotOptions && 'fullPage' in options.screenshotOptions && options.screenshotOptions.fullPage
+
+  if (isFullPage && window.frameElement) {
+    (window.frameElement as HTMLIFrameElement).style.setProperty('--inner-height', `${document.documentElement.scrollHeight}px`)
+  }
 
   const [element, ...mask] = await Promise.all([
     isPageTarget ? undefined : serializeElement(actual, options),
@@ -75,6 +80,10 @@ export default async function toMatchScreenshot(
     ] satisfies ScreenshotMatcherArguments,
   )
 
+  if (isFullPage && window.frameElement) {
+    (window.frameElement as HTMLIFrameElement).style.removeProperty('--inner-height')
+  }
+
   if (result.pass === false) {
     const attachments: VisualRegressionArtifact['attachments'] = []