I'm using IntelliJ 13.0.2 with Linux (CentOS6). Whenever I use quick docs and then chose the arrow to show full external JavaDoc in the browser. The Firefox browser (default from distro) IDEA launches seems to prevent any editing in the editor until that Firefox browser is terminated. No editing cursor appears in the editor, but menus still appear to respond to the mouse.
This somewhat defeats the puprose of opening the docs in a browser - its because I need a refrence open while continuing to code.