diff --git a/ts/editor/ClozeButtons.svelte b/ts/editor/ClozeButtons.svelte
index e9faae540..dfe4fb7c3 100644
--- a/ts/editor/ClozeButtons.svelte
+++ b/ts/editor/ClozeButtons.svelte
@@ -4,7 +4,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 -->
 <script lang="ts">
     import * as tr from "@generated/ftl";
-    import { isApplePlatform } from "@tslib/platform";
+    import { chromiumVersion, isApplePlatform } from "@tslib/platform";
     import { getPlatformString } from "@tslib/shortcuts";
     import { createEventDispatcher } from "svelte";
     import { get } from "svelte/store";
@@ -22,9 +22,13 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
     const { focusedInput, fields } = noteEditorContext.get();
 
-    // Workaround for Cmd+Option+Shift+C not working on macOS. The keyup approach works
-    // on Linux as well, but fails on Windows.
-    const event = isApplePlatform() ? "keyup" : "keydown";
+    // Workaround for Cmd+Option+Shift+C not working on macOS on older Chromium
+    // versions.
+    const chromiumVer = chromiumVersion();
+    const event =
+        isApplePlatform() && chromiumVer != null && chromiumVer <= 112
+            ? "keyup"
+            : "keydown";
 
     const clozePattern = /\{\{c(\d+)::/gu;
     function getCurrentHighestCloze(increment: boolean): number {
diff --git a/ts/lib/tslib/platform.ts b/ts/lib/tslib/platform.ts
index 7aa5e137d..d055bcb53 100644
--- a/ts/lib/tslib/platform.ts
+++ b/ts/lib/tslib/platform.ts
@@ -13,3 +13,20 @@ export function isApplePlatform(): boolean {
 export function isDesktop(): boolean {
     return !(/iphone|ipad|ipod|android/i.test(window.navigator.userAgent));
 }
+
+export function chromiumVersion(): number | null {
+    const userAgent = window.navigator.userAgent;
+
+    // Check if it's a Chromium-based browser (Chrome, Edge, Opera, etc.)
+    // but exclude Safari which also contains "Chrome" in its user agent
+    if (userAgent.includes("Safari") && !userAgent.includes("Chrome")) {
+        return null; // Safari
+    }
+
+    const chromeMatch = userAgent.match(/Chrome\/(\d+)/);
+    if (chromeMatch) {
+        return parseInt(chromeMatch[1], 10);
+    }
+
+    return null; // Not a Chromium-based browser
+}