[ https://issues.jboss.org/browse/JBIDE-17230?page=com.atlassian.jira.plugi... ] Michelle Murray updated JBIDE-17230: ------------------------------------ Description: Within Window>Preferences>JBoss Tools>BrowserSim/CordovaSim, selecting GTK for BrowserSim seems to be available for Linux-based OS only. I can choose GTK2 or GTK3. I'm running the IDE under GTK2 (export SWT_GTK3=0) to avoid UI issues. So I select to run BrowserSim also under GTK2 - seems sensible. But when I start BrowserSim I see the error message stating was: BrowserSim can be run with 2 web engines: JavaFX or SWT WebKit. On Mac OS X, under preferences I don't see an option to change the web engine for BrowserSim. I assume it is running with JavaFX - is that right? On Windows?? I don't have a windows system to test. On Linux-based OS, the web engine to use depends on the GTK with which BrowserSim is run. GTK2 = JavaFX and GTK3 = SWT WebKit. There are additional restrictions based on OS with respect to this: * JavaFX requires Oracle JDK - this JDK is only supported by Red Hat on RHEL, not Fedora or Ubuntu so this option is pointless for the majority of Linux OS we support * On Fedora at least I have to run the IDE with GTK2 to avoid issues (export SWT_GTK3=0); running BrowserSim with GTK3 I see at least one UI issue in the BrowserSim Preferences window The potential paradox: * We are advising Fedora users to run IDE under GTK2 to avoid seeing UI issues but they must run BrowserSim under GTK3 so see UI issues -- This message was sent by Atlassian JIRA (v6.2.3#6260)