Allo all,
I have Firefox 87.0 but I don’t think the version matters. I also have Kubuntu 20.10 but I had 18.04 before and the problem was present.

The open file dialog box varies between applications.
For example, the look is very different than from LibreOffice and KolourPaint and Krita.
LibreOffice and KolourPaint and Krita have more of a Win XP style. Also, they don’t show hidden files.

Firefox’s open dialog box looks different and shows the hidden files.
Is there a way to make it hide the hidden files?

Searchmonkeys dialog box is similar to that of Firefox. Again, how to make it hide the hidden files?

~~~~vmelkon

In my FF-88 Ctrl+H can toggle this.

Well, that was easy.
However, they should put a checkbox or something.

~~~~vmelkon

It is quite universal shortcut, works in all GTK applications.

right-click into the file list, there's your checkbox.

Do you also want to make that permanent?

That's ok. Looks like if I close Searchmonkey and reopen it, it remembers that hide/not hide setting.
What would be nice is if the look was consistent.
LibreOffice, Kate, my own apps have this look for the open dialog box.
Can I make Firefox and Searchmonkey do the same?

I attached a screenshot of the LibreOffice, Kate look.
Also, at the top right corner, if you click on the horizontal line and dot thing, a menu comes up and I can click on Show Hidden files.
So, it is good that the GUI is available.

~~~~vmelkon

Attached Thumbnails

 

No. One is Qt, the other's GTK.
https://html.duckduckgo.com/html?q=l...t+and+GTK+same

I see.
I found something on Arch Linux wiki where there was a flag or something that could be setup but I didn't keep the link.
Anyway, it would probably not work Kubuntu.

Another option would be to have a wrapper for both GTK and Qt, which apparently, is what Firefox is doing but they are no longer working on the Qt backend.

So, I will set this thread to solved.

~~~~vmelkon