In Ubuntu 21.10, Firefox 93.0 can't open a file in a hidden directory like
(Whatever the name and content of the HTML file, you can use an empty file.)
Nor does Chromium 95.0.4638.54 snap but Dillo version 3.0.5 and Google Chrome 90.0.4430.93 can do it.
In 21.04, Firefox 93.0, Dillo 3.0.5 and Google Chrome 90.0.4430.93 can do it, only Chromium 94.0.446.71 snap cannot, so this is a regression.
Can you confirm? Is it worth reporting a bug? Is it Firefox or Ubuntu bug?
I found this by using Claws Mails that stores HTML mail files in
Checked with Ubuntu 22.04.
Take any HTML file named
index.html that Firefox or Chromium can open. Rename it with a leading dot
.index.html, then Firefox or Chromium cannot open it. Firefox error message (in window) :
Access to the file was denied The file at /home/me/.index.html is not readable. It may have been removed, moved, or file permissions may be preventing access.
With or without dot, the
Failed to load module "canberra-gtk-module" error also occurs in Terminal so it is probably not the cause.
% snap list chromium 101.0.4951.41 firefox 99.0.1-1
dillo has no problem.
*.debversion of Firefox 93.0 in Ubuntu 21.10. I can drag the file from Nautilus onto Firefox, and it opens. Also, I can right-click on the file and select to open the file in Firefox, and it opens.
firefox /home/alba/.toto/0000000d.html, same result. But I see this
Gtk-Message: 22:11:44.197: Failed to load module "canberra-gtk-module.
sudo apt install libcanberra-gtk-module libcanberra-gtk3-moduledoes not remove the message.
firefox ~/.toto/0000000d.htmljust opens the (blank) file in Firefox for me, without errors. Try the
*.debversion. May be the snap sand-boxing is causing this? By the way, I have