As of June 2018, Mac OS 10.8 ‘Mountain Lion’ is no longer supported by the current versions of our plugins. You will need to have Mac OS 10.9 Mavericks or higher if you want to update to the latest versions of our plugins.
However, you can still download legacy installers for your plugins which will work on your system. Head on over to the Mac OS 10.8 'Mountain Lion' Legacy List and download the installers you need.
Please note, if you don't see one of your plugins on there, it is most likely because this plugin has a different update schedule and the version that is available via the Installation Manager or on your Manage Registered Plugins page will still work on Mac OS 10.8.