Camera not working again on mid 2013 Macbook Air after the second 10.8.5 upgrade As mentioned here, the first 10.8.5 upgrade made the camera unavailable for Skype. This being totally unacceptable to me, I applied the fix that was around on macrumours, I backed up the AppleCamera.plugin under /Library/CoreMediaIO/Plug-Ins/DAL/, deleted it, and put the 10.8.4 version of the file there. This fixed it until yesterday, when I applied the second 10.8.5 update. The update didn't complain about anything, but now the camera doesn't work again. I've tried using the backed up file, the 10.8.4 again, and the new version that a friend who didn't apply the fix got from the new update (which I didn't). His AppleCamera.plugin is 2.3MB in size, while mine is 2.2MB or 2.4MB (backed up / 10.8.4).

I'm sure everyone who applied that fix is now with the same problem, but I can't find anyone mentioning anything anywhere. Help!
So, if I understand correctly, you did these steps:


Upgraded to 10.8.5
Found the camera didn't work in Skype
Backed up /Library/CoreMediaIO/Plug-Ins/DAL/AppleCamera.plugin
Put AppleCamera.plugin from 10.8.4 in its place
Camera worked
Upgraded to 10.8.5 Supplemental Update
Camera broken again


The Supplemental Update does include a copy of AppleCamera.plugin (see below), so one quick thing to try:


Put your copy of AppleCamera.plugin from step (3) back into place
Download the 10.8.5 Supplemental Update again.  You can get it as a DMG file from Apple DL1686
Re-run that update (double click the .pkg file in the DMG)


By the way, you can see what files are contained within the update: double click the .pkg file, then choose File > Show Files from the installer.