I was editing a video and Quicktime crashed. After that, even rebooting wouldn't make it work. Quicktime is crashing repeatedly.
MacBook Pro 14″, macOS 14.2
After a lot of struggle I deleted the folder ~/Library/Containers/com.apple.QuickTimePlayerX/Data and then Quicktime started opening as expected.
Thanks for reporting this.
I have had no trouble with QuickTime Player and I have wondered what is the root of the problems others experience (besides corrupting the system with 3rd party virus apps, "cleaning", "optimizing", "speed-up" apps (CleanMyMac, MacKeeper etc)).
My cleanly installed Sonoma does not have that folder, but it has:
~/Library/Containers/QuickTime Player/Data
Maybe yours is a leftover from some old macOS version? Did you have both folders?
Quicktime crashing when I open it
