Description: Thunderbird attachments are always opened in read only mode in 7.2 in Ubuntu Linux 20.04. Steps to Reproduce: 1.In Thunderbird select an attachment, which will be opened by Libreoffice. 2.Double-click or right-click to open file. Actual Results: Window asking to open read-only, notify or cancel appears. Expected Results: File opens in edit mode. Reproducible: Always User Profile Reset: No OpenGL enabled: Yes Additional Info: Version: 7.2.1.2 / LibreOffice Community Build ID: 87b77fad49947c1441b67c559c339af8f3517e22 CPU threads: 8; OS: Linux 5.4; UI render: default; VCL: gtk3 Locale: lv-LV (en_US.UTF-8); UI: en-US Calc: threaded Thunderbird 78.13.0 (64-bit)
*** This bug has been marked as a duplicate of bug 143971 ***