@jaycbrf – Which version of OS X are you having this issue? My friend is running 10.9.5 but a coworker brought in his laptop and he’s running 10.10.2 and he cannot replicate the problem on either Chrome or Safari. I am wondering if this is an edge-case problem with OS X somehow.
@fierling – Which issue are you referring to? Seems like there are two issues being talked about here: Content is the same in on the panels and content not saving.
The plugin seems to operate as expected on my Windows 7 x64 machine in Firefox, Chrome, and IE11. Haven’t bothered testing with Opera.