JabRef version on
JabRef 5.1--2020-05-01--a123eb1
Linux 5.3.0-51-generic amd64
Java 14.0.1

• [x ] I have tested the latest development version from http://builds.jabref.org/master/ and the problem persists

Steps to reproduce the behavior:

1. Options/Preferences/General
2. Default Bibliography Mode dropdown has only one value, "BibTeX". I would expect
   also to see "BibLaTeX".