Extension are installed with the extension manager used by each version of Photoshop. You need to use the correct version of the extension manager for the version of Photoshop you using and you must have the correct extension package, packaged for the version. Each version of Photoshop requires a different package. Extension that were created with Adobe Configorator created Flash Panels and support for Flash panels was removed from Photoshop in CC 2014. That is why extensions like minibridge do not work in CC 2014