Editor freezes when opening browser

[mbpowers]

Tested versions

4.2.2.stable.arch_linux

System information

Godot v4.2.2.stable unknown - Arch Linux #1 SMP PREEMPT_DYNAMIC Thu, 02 May 2024 17:49:46 +0000 - Wayland - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 3060 Laptop GPU () - 12th Gen Intel(R) Core(TM) i7-12700H (20 Threads)

Issue description

When running Remote Debug in browser or opening docs when there is no existing browser open, Godot opens a browser as a child process which freezes the editor. Unfreezes when browser is closed. Regression of #51691.

Steps to reproduce

Run Remote Debug in browser or open docs with no browser open.

Minimal reproduction project (MRP)

Happens on any project.

[MuffinInACup]

Replicated on
v4.3.stable.official [77dcf97] - Garuda Linux #1 ZEN SMP PREEMPT_DYNAMIC Thu, 12 Sep 2024 17:17:51 +0000 - X11 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (nvidia; 560.35.03) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)