I have the same (or at least a very similar) problem. On a fully up to date xubuntu 20-04 system, when i run evince and click on a link, it fails to follow that link in my browser. This kind of thing happens when you are reading a technical paper and want to follow one of the references and click on the doi or url.
When i click on the link i get a box that i cannot copy from that says: Failed to launch preferred application for category "WebBrowser". Failed to execute child process "/usr/lib/x86_64-linux-gnu/xfce4/exo-2 /exo-helper-2"(Permission denied). Did I say that it is annoying that i could not copy the text in this box!!!!!! The output of the ldd command you asked for is attached. I should also point out that this worked fine under xubuntu 18.04. ** Attachment added: "the output of ldd -r `which evince` that you asked for." https://bugs.launchpad.net/ubuntu/+source/evince/+bug/1869159/+attachment/5400167/+files/xx -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to evince in Ubuntu. https://bugs.launchpad.net/bugs/1869159 Title: Opening a pdf from Zotero in evince, I got "failed to load backend for 'application/pdf': libnss3.so: failed to load shared object mapping segment Status in evince package in Ubuntu: Incomplete Bug description: Opening a pdf file from Zotero in evince, I got "failed to load backend for 'application/pdf': libnss3.so: failed to load shared object mapping segment" and the file won't open. When opening the file from its location in Nautilus, that works properly. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: evince 3.36.0-1 ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24 Uname: Linux 5.4.0-18-generic x86_64 ApportVersion: 2.20.11-0ubuntu21 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Thu Mar 26 10:17:17 2020 InstallationDate: Installed on 2019-02-21 (398 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash SourcePackage: evince UpgradeStatus: Upgraded to focal on 2020-03-20 (5 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/evince/+bug/1869159/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
