Default File Manager Crashes Apps

[MahmoudKamal2006]

Description

The experimental feature: Set Files as the default file manager crashed modrinth (a Minecraft launcher) when used the button in modrinth "Open Folder" where Files opens as either a blackscreen, or the main homescreen, but its just like a static image nothing happens and it's frozen, and if you click on it or on Modrinth both get the Not Responding white screen

Steps To Reproduce

Open Modrinth
Choose instance/installation
Press the 3 dots
Open Folder
Crashes 👍

Files Version

4.0.21.0

Windows Version

Edition Windows 11 Home Version 24H2 Installed on ‎19/‎11/‎2025 OS build 26100.7171 Experience Windows Feature Experience Pack 1000.26100.265.0

User ID

No response

Log File

debug.log

[Josh65-2201]

Thanks for the report, you should report this to the Modrinth launcher team, Files only changes a Windows made registry value to have it open files with a path given by Modrinth launcher

[yaira2]

Does this only happen when opening Files from external apps, or does it also happen when opening Files from the Start Menu? Also, did this issue start with v4.0.20 or was it an existing issue?

[MahmoudKamal2006]

I have done some testing and indeed the issue comes from Modrinth itself, I have tried other apps by opening logs, browsing ther folders, etc.
I have also tried browsing for a file in the start menu and it worked
However I couldn't help but notice that whenever I do any of those actions the app seems to be a bit slow, takes a few seconds to open, and takes a second or two to load the contents of the file, this wouldn't be an issue from my device since it's a high end system, but that's not really a life changing issue

I'm using the latest version, I literally downloaded the Files app like 10 hours ago

[yaira2]

Thanks for the response. It's worth mentioning that Windows doesn't have an official way to change the default file manager. Although we have a workaround to set Files as the default, there are some limitations with our implementation.