EDIT: If you install jdownloader using ther jdownloader ppa, jdownloader first tries to update itself to the newest version. You get more information about what's going on if you start jdownloader from the command line using jdownloader -v.
EDIT: If you install jdownloader using ther jdownloader ppa, jdownloader first tries to update itself to the newest version. You get more information about what's going on if you start jdownloader from the command line using jdownloader -v.