Some users have reported an issue in which QuickTime content, including many MP3s, will not play in Safari 5.0.1. Users experiencing this issue often report receiving a QuickTime playback box with a question mark inside, which indicates playback failure.
In some cases, this issue is caused by problematic plug-ins. Quit Safari, then navigate to /Library/Internet Plug-Ins (the Library folder at the root level of your hard drive) and remove any recently added third-party plug-ins.
You may also want to try temporarily removing the following plug-ins:
- QuickTime plugin.plugin
- Quicktime plugin.webplugin
- VLC Plugin.plugin
After removing these items, restart Safari and check for proper operation. You can then add plug-ins back one by one to identify the culprit.
Reinstall latest version of Flash. In some cases, this issue can be resolved by reinstalling the latest version of Adobe Flash.
Obsessed with tech since the early arrival of A/UX on Apple, Sudz (SK) is responsible for the editorial direction of AppleToolBox. He is based out of Los Angeles, CA.
Sudz specializes in covering all things macOS, having reviewed dozens of OS X and macOS developments over the years.
In a former life, Sudz worked helping Fortune 100 companies with their technology and business transformation aspirations.