A check on logs... it's possible not all package upgrades had taken effect, there is a message saying a restart is required because of dbus-deamon upgrade (can't do that on a live system) & lack of disk space on system.. so may require verification when an ISO build completes.
The error on this system however matches the following I got earlier today when tested on my installed/primary box --- File not found Firefox can’t find the file at /usr/share/libreoffice/help/index.html?Target=swriter/.uno:HelpIndex&Language=en- US&System=UNIX&Version=7.3. Check the file name for capitalization or other typing errors. Check to see if the file was moved, renamed or deleted. --- that system is NOT live & has all upgrades applied.. It was clean booted this morning -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1967971 Title: libreoffice help isn't opening - "Firefox can’t find the file at /usr/share/libreoffice/help/index.html?Target=swriter/.uno:HelpIndex&Language=en- US&System=UNIX&Version=7.3." To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1967971/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs