OS X 10.8.5 breaks FaceTime camera compatibility for some third-party apps on Mid-2013 MacBook Airs

The latest OS X update has caused some problems with the FaceTime camera on the latest MacBook Air model, leaving certain third-party apps like Skype unable to use the camera. The problem apparently concerns 32-bit apps that use the camera, including Skype and iMovie. OS X 10.8.5 updated a particular plugin for the FaceTime camera, but not for 32-bit apps, according to a Skype for Mac engineer:

The 10.8.5 update updated a CoreMediaIO plugin that accesses the MBA camera, but didn't bundle the 32-bits version of it. Other (older and newer) versions of the OS do include a universal version (32 and 64 bits), but not 10.8.5. This means 32-bits apps such as Skype or iMovie cannot load the plugin, making the built-in facetime camera invisible to these them.

It appears that this issue does not affect external cameras. Until a fix is issued, users will have to rely on this workaround:

  1. You need Time Machine
  2. Go to folder /Library/CoreMediaIO/Plug-Ins/DAL/
  3. Copy AppleCamera.plugin to good place (usb memory stick is the best place).
  4. Go to Time machine in date that skype work fine.
  5. Change AppleCamera.plugin with file from Time Machine
  6. Restart system, Now skype need to work with camera. This solution is only for this time until Apple make update for this problem!!!

A download for the plugin is also provided.

Source: Skype Community, Apple Support Communities, David Redekop