# Ubuntu – Firefox: open .pdf files with acrordrdc (installed by snap)

I'm trying to open .pdf files in Firefox with acrordrdc installed via snap. I tried:

1. Since acrordrdc file.pdf works I tried using a "wrapper" file:

#!/bin/bash
acrordrdc $1  2. Editing the acrordrdc.desktop (see Changing default app for PDF). In the first case (the wrapper solution) acrordrdc opens with an empty window. No file is showed. In the second case I can select "Acrobat Reader DC" in Firefox but nothing happens when the files is downloaded. Acrobat is not opened. Edit. After the N0rbert answer I tried to modify my wrapper: #!/bin/bash cp$i ~/Downloads/renamed.pdf


and now it works. Now I need to find a way to remove the file(s) after I read it (them).

I don't understand why I need to rename it. If I have:

#!/bin/bash
cp $i ~/Downloads/$1


it doesn't work. The file is copied but not opened.

• After some debugging in Ubuntu MATE 20.04 LTS I discovered that Firefox copies PDF file of interest to the /tmp folder.

The /tmp folder can't be accessed by this snapped application. Wrapper script does not help either. So it is impossible to integrate /snap/bin/acrordrdc with Firefox.

I'll recommend to remove snapped version of Adobe Acrobat with

snap remove acrordrdc


and install native pretty old deb-based version of Adobe Reader 9.5.5 by:

cd ~/Downloads
sudo apt-get install libxml2:i386 gtk2-engines-murrine:i386 gtk2-engines-pixbuf:i386 libcanberra-gtk-module:i386 libatk-bridge2.0-0:i386 libatk-adaptor:i386


and then choose it in the Firefox settings.