Responsive site preview in dev tools randomly disables zoom dropdown


Description of the issue:
This is related to Brave auto-resizing the responsive preview in dev tools even when auto-resize is disabled. I keep having to set the zoom level back to 100% after I change the preview resolution, and to make matters worse, when DevTools is in a separate window (which it usually is), very often the zoom dropdown gets disabled (i.e., clicking it does nothing). The only way to get it to respond is to switch back to the DevTools window and then switch back to the main window. Switching to another app and then switching back to Brave doesn’t fix it.

How can this issue be reproduced?

  1. Open DevTools and configure it to load in a separate window.
  2. Enter responsive view.
  3. Change the preview resolution.
  4. Click the zoom dropdown.

Expected result:

Zoom dropdown expands.

Brave Version( check About Brave):
Version 1.73.91 Chromium: 131.0.6778.85 (Official Build) (64-bit)

Additional Information:
OS: Windows 11, build 10.0.22631.4460 (though I’ve been experiencing this issue since I had a laptop with Windows 10)

Ref. material: