Why does Notepad++ disable the HexEditor plugin?
The Hex Editor plugin was disabled for being unstable. This means that the plugin crashed Notepad++ in some situations. I encountered this problem myself when trying to save an edited file.
Earlier versions of Notepad++ don't have those problems with the plugin.
Just put it back in the plugins folder and it works fine.
I too like the HexEditor plugin. I rolled back Notepad++ to an older version to be able to work with this plugin. Now I checked the latest version on Notepad++ (v5.9.2 Unicode) with the latest HexEditor plugin (v.0.9.5 Unicode), and it works! The plugin is no longer disabled.