I had this problem on Ubuntu Mate (18.04). I resolved it by deleting the okularrc file in ~/.config/okularrc When you start okular again, it will create a fresh okularrc file.
-- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/329337 Title: Okular starts in full-screen mode, without toolbar if last used maximized To manage notifications about this bug go to: https://bugs.launchpad.net/kdegraphics/+bug/329337/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp