diff --git a/CHANGELOG.md b/CHANGELOG.md
index 56e99e5780..dc31f74429 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@
 ### Changed
 
 ### Fixed
+- webxdc: fix a bug where the webxdc was able to open the dev tools.
+Also make opening devtools with F12 more reliable.
 
 <a id="1_40_2"></a>
 
diff --git a/src/main/deltachat/webxdc.ts b/src/main/deltachat/webxdc.ts
index 8d0d6a68cf..4f4b437525 100644
--- a/src/main/deltachat/webxdc.ts
+++ b/src/main/deltachat/webxdc.ts
@@ -421,14 +421,17 @@ If you think that's a bug and you need that permission, then please open an issu
             callback(permission_handler(permission))
           }
         )
-      }
-    )
 
-    ipcMain.handle('webxdc.toggle_dev_tools', async event => {
-      if (DesktopSettings.state.enableWebxdcDevTools) {
-        event.sender.toggleDevTools()
+        webxdc_windows.webContents.on('before-input-event', (event, input) => {
+          if (input.key.toLowerCase() === 'f12') {
+            if (DesktopSettings.state.enableWebxdcDevTools) {
+              webxdc_windows.webContents.toggleDevTools()
+              event.preventDefault()
+            }
+          }
+        })
       }
-    })
+    )
 
     ipcMain.handle('webxdc.exitFullscreen', async event => {
       const key = Object.keys(open_apps).find(
diff --git a/static/webxdc-preload.js b/static/webxdc-preload.js
index 145816f119..2bfd64df34 100644
--- a/static/webxdc-preload.js
+++ b/static/webxdc-preload.js
@@ -233,12 +233,7 @@
   })
 
   const keydown_handler = ev => {
-    if (ev.key == 'F12') {
-      ipcRenderer.invoke('webxdc.toggle_dev_tools')
-      ev.preventDefault()
-      ev.stopImmediatePropagation()
-      ev.stopPropagation()
-    } else if (ev.key == 'Escape') {
+    if (ev.key == 'Escape') {
       ipcRenderer.invoke('webxdc.exitFullscreen')
     }
   }