[Debian 13] KeePassXC AppImage won’t launch due to missing libfuse.so.2

[echosierra1111]

I’m currently using KeePassXC 2.7.10 (x86_64 AppImage) from a USB stick on Debian 12 (Bookworm) without any issues. Recently, I performed a fresh installation of Debian 13 (Trixie) and encountered the following error when trying to launch the application:

dlopen(): error loading libfuse.so.2

AppImages require FUSE to run. 
You might still be able to extract the contents of this AppImage 
if you run it with the --appimage-extract option. 
See https://github.com/AppImage/AppImageKit/wiki/FUSE 
for more information

I checked which FUSE libraries were installed using:
apt list libfuse*

The output showed that libfuse3-4 was present:

libfuse-dev/stable 2.9.9-9 amd64
libfuse-perl/stable 0.16.1+20180422git6becd92d7fce3fc411d7c-6+b4 amd64
libfuse2t64/stable 2.9.9-9 amd64
libfuse3-4/stable,now 3.17.2-3 amd64 [installed,automatic]
libfuse3-dev/stable 3.17.2-3 amd64

Since the error indicated that the AppImage was linked against libfuse version 2, I assumed that this was the root cause.
To resolve it, I installed libfuse2 with:
apt install libfuse2t64

After installation:

apt list libfuse*

libfuse-dev/stable 2.9.9-9 amd64
libfuse-perl/stable 0.16.1+20180422git6becd92d7fce3fc411d7c-6+b4 amd64
libfuse2t64/stable,now 2.9.9-9 amd64 [installed]
libfuse3-4/stable,now 3.17.2-3 amd64 [installed,automatic]
libfuse3-dev/stable 3.17.2-3 amd64

This solved the problem — KeePassXC now launches without errors.

I’m sharing this here in case anyone else encounters the same issue when upgrading to Debian 13. Installing libfuse2 should fix the problem.

[rvalla]

You saved me! I was having the same issue with AppImages from RawTherapee 5.12 and MuseScore 3.6.
Thanks!