Firefox download unable to open Dolphin file manager

[Felandi]

A patch rolled out very recently, possibly in the last 24 hours specifically on the desktop mode side of steam. After this, something appears to have changed with the download mangers for browsers. It is no longer able to open Dolphin file manager. Specifically the current Deck version of Firefox.

In testing, a firefox download will begin just fine if you disable 'choose where to download' landing on the default folder, in this case Downloads. It is specifically just unable to open dolphin to select a download locale.

In testing with Brave browser, a download will be able to choose locale, but doesn't do so through dolphins standard window. But a different download manager window that cannot detect subfolders. For instance, it can see Home/Deck but cannot detect the emulation folder of Emudeck.

For testing purposes, no extensions were installed, and firefox was refreshed to default settings.

[Felandi]

For reference, this issue was tricky to troubleshoot. Because the behaviour where dolphin does not open, produces no error message. Instead, nothing happens after you click a download, unless the 'always choose where to download' option is off.

[deaddoof]

Valve changed firefox to the flathub version because the company is behind on following updates. The whole application is containerized aka isolated from a good chunk of your system

https://github.com/flatpak/flatpak/issues/3977

https://github.com/tchx84/Flatseal/issues/196

Read bug reports. They have the full picture. I haven't tinkered with these settings so I do not know.

[Felandi]

That's the interesting part, I was using the 'updated' flatpak one they replaced a few weeks ago, and downloads through file manager were working perfectly. This behaviour is new in that same version.