tor-browser

commit 721b1c270b36d869b871fe78269859a33f58b16e
parent 89a700447e587357398998a6d5c4c61b800f8f2b
Author: Sam Foster <sfoster@mozilla.com>
Date:   Thu,  4 Dec 2025 23:38:20 +0000

Bug 2003601 - Engage prefers-reduced-motion to avoid the opacity transition as the window becomes active. r=emilio

Differential Revision: https://phabricator.services.mozilla.com/D275137

Diffstat:
M
browser/base/content/test/performance/browser_windowopen.js
 | 
6
++++++

1 file changed, 6 insertions(+), 0 deletions(-)
diff --git a/browser/base/content/test/performance/browser_windowopen.js b/browser/base/content/test/performance/browser_windowopen.js
@@ -17,6 +17,12 @@ const EXPECTED_REFLOWS = [
    */
 ];
 
+add_setup(async function setup() {
+  SpecialPowers.pushPrefEnv({
+    set: [["ui.prefersReducedMotion", 1]],
+  });
+});
+
 /*
  * This test ensures that there are no unexpected
  * uninterruptible reflows or flickering areas when opening new windows.