Description: Menu Bar → File → “Preview in Web Browser” does not work in Flatpak version Steps to Reproduce: 1. On Linux, install LibreOffice from Flathub https://flathub.org/ 2. Open the Flatpak version of LibreOffice 3. Select the “File” menu 4. Select “Preview in Web Browser” Actual Results: Nothing happens Expected Results: Open in the default web broswer Reproducible: Always User Profile Reset: No Additional Info: Linux Mint 19.1 Cinnamon https://bugs.documentfoundation.org/show_bug.cgi?id=124998 Thank you