I can help complete his notes by adding details to this bug. The specific issue is that when downloading .deb files from an external source, i.e. www.chrome.com and you download the .deb to your computer and double click the completed file it will in fact not open in software to engage the software install process. I have found that double clicking invokes the action of opening the archive with archive manager and trying to "unzip" the file instead of install it. I have tried manually setting the file to "open with" "Ubuntu Software". I have found that installing with gdebi works and also by using dpkg -i via terminal. Thanks I hope this helps.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-software in Ubuntu. https://bugs.launchpad.net/bugs/1872522 Title: Ubuntu software will not install .deb files on focal fossa Status in gnome-software package in Ubuntu: Incomplete Bug description: On focal fossa Ubuntu software will not install .deb files (such as Google Chrome installer) however gdebi has no problem with the same files. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: ubuntu-software (not installed) ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu26 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Apr 13 19:36:10 2020 InstallationDate: Installed on 2020-04-12 (1 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200409) ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: gnome-software UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1872522/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

