If you try to launch Libreoffice from a web application on Ubuntu (other distro also), you will get a : - "Failed to launch 'ms-word:" "scheme does not have a registered handler" or - "Failed to launch 'vnd.libreoffice.command:" "scheme does not have a registered handler" depending of the launch method. You can also show the problem from the command line : $ xgd-open ms-word:ofe|u|https://serveraddress/path/to/file.docx or $ xgd-open vnd.libreoffice.command:ofe|u|https://serveraddress/path/to/file.docx $ "gio: the specified location is not supported" Environment : Ubuntu 20.04LTS, Libreoffice 6.5.7.2 and 7.1.5 At linux install, Libreoffice should register for URI by : $ xdg-mime default libreoffice-writer.desktop x-scheme-handler/vnd.libreoffice.command $ xdg-mime default libreoffice-writer.desktop x-scheme-handler/ms-word $ sudo update-desktop-database or course this has to be done for other format (spreadsheet,...)
Several new major versions have been released since your report. Do you still encounter this problem with current version? Set to needinfo, please set it back to unconfirmed if the issue is still there, or worksforme if not. Best regards. JBF