This is wrong and it makes me angry.

Why not just scrap GNU/Linux? All the world needs is Windows, MacOS, and GNU/systemd. Even then, our overlords at Redmond, Cupertino, and Red Hat may get together and decide that with these three OSs we still have too much choice.

@hughparker1: You don't need sudo to make it executable. Also, for security reasons I recommend not running any web browser as superuser. As to what directory to put the AppImage in, it is completely up to you--an AppImage does not require installation and contains everything it needs inside that one file, which can be run from any directory. It is truly a "portable application".

In case any newbies need a more explicit step-by-step of what to do from the command line:

dest_dir="$HOME/bin" # dest_dir can be anything you want
mkdir -p "$dest_dir"
cd "$dest_dir"
wget https://bintray.com/probono/AppImages/download_file?file_path=Firefox-53.0.2.glibc2.3.4-x86_64.AppImage -O Firefox53.AppImage
chmod a+x Firefox53.AppImage
./Firefox53.AppImage

At that point, you will be asked whether you would like a .desktop file (~/.local/share/applications/appimagekit-firefox.desktop) to be created automatically for you so that you can run the Firefox appimage directly from your applications menu.

That's it At the most, you will be adding a single additional file to your system (either ~/.local/share/applications/appimagekit-firefox.desktop or a little marker file called ~/.local/share/appimagekit/Firefox_no_desktopintegration).

The advantage of using AppImages is the extreme simplicity of one app = one file. The only disadvantage I can think of is not having the convenience of getting security fixes through your package manager.

P.S. In case you'd like to see what's contained inside the AppImage:

./Firefox53.AppImage --appimage-extract

Thanks for the info, smoki. Sad to hear. Fortunately, as long as Devuan follows a fixed release model, I won't have to fix theme breakages more than once every few years. I can live with that.

I'm still having dropped wifi connections at least daily, despite using nohwcrypt=1.

Nevertheless, this may be a red herring and totally unrelated to Devuan, wicd, or network-manager: Our VPN provider made some recent changes right around the time I switched to Devuan. I have updated the VPN configuration in our routers.

Sorry for the noise.

Thanks, smoki. Yes, I figured the culprit was between the screen and the chair

I will keep an eye on this and make sure it runs warning- and error-free. If I figure out what I did to cause the breakage and if it turns out to be something interesting, I'll post it here.

@malinas: Yes, that is a limitation of the script as written. I don't listen to music at the computer, so that wasn't an issue for me. It would be trivial, however, to add some logic to *not* send the nudge if audacious (or any other application used specifically for listening to music) is running.

@smoki: Indeed, LCDs have no need of screensaver--I have xscreensaver on my daily driver laptop only for ornamental purposes. On the other hand, I have an old laptop that I converted into a media player (including IR receiver!) which lives permanently connected to a 60'' plasma TV. In this case, a reliable screensaver is an absolute must-have. Since I started using this script, I no longer have to depend on a manual process to turn screensaver off and on when watching videos in a web browser.

I have found a new home in Devuan, too. Know how you feel. Welcome to the form, david!

Yes, it should work just fine: It doesn't matter if what's generating sound is a video, a game, or a chat. If there is sound, the script keeps screensaver at bay.

@greenjeans: At this point we've hijacked this thread Nevertheless, I think I can help with your issue because I'm also a keyboard guy...

I have a ton of custom keybindings and they're essential to how I use my computer. I use xbindkeys instead of MATE's builtin "Keyboard Shortcuts" because I like to keep my keybindings in alphabetical order in a text file that I can easily edit (namely ~/.xbindkeysrc). With xbindkeys all my keybindings work in Devuan MATE, even if desktop is empty. I never have to click anywhere.

Just install xbindkeys, make sure that it autostarts (it should automatically take care of this for you--take a peek in Startup Applications after installing xbindkeys), and create ~/.xbindkeysrc with your keybindings. Here's a snippet from my ~/.xbindkeysrc to give you the idea (Mod4 is my GNU key, formerly known as Windows key):

"mate-terminal"
  Mod4+t

"thunderbird"
  Control+Alt+t

Any time you update the file, xbindkeys needs to be restarted in order for changes to take effect. Enjoy!