QuickLook is crashing the Finder in Mavericks

Same here. Going through folders with lots of images, even fairly small ones of about 3mb in size crash the finder. It's pretty random though. Sometimes I can go through lots of images with no porblems and other times I get the spinning beachball . I wish Apple would focus on making more reliable operating systems instead of trying to rush out a new version so often. Unfortunately I think this is a bug in the OS that can't be fixed unelss Apple does something about it.

You just have to create the folder '/Users/william/Library/Containers/com.apple.quicklook.ui.helper/Data'

My issue with QuickLook that it crashes while viewing mp4 and mp3's

While slow with jpg and pdf it does work

Quicklook also does not seem to be working in Pages for me, or in spreadsheets...or in a lot of programs that it used to to work in prior to updated to Maverick.

There needs to be a fix for this.

I have this folder but I still get crashes. However my crashes are when I try to QuickLook videos – not any particular file extension by the look of it, some .mp4, some .mov etc.

This fixed my problem

Thanks !

Another possible cause is that it is known that Mavericks has crashing bugs with CoverFlow, so see if the crash has to do with the Finder window being in CoverFlow mode. If so, use a different viewing mode.

I am trying to view a folder with only 128 JPGs and Mavericks (10.9.1) Quickview keeps crashing. Do I have to create a folder for each file for it to work correctly? This also happens if I am trying to browse video file. 😕

When you say the "system" do you mean the OS only, or did you format your hard drive?

Having a folder for each file won't change anything. 128 files isn't too many files either. You are experiencing a bug in Finder.

I don't use Coverflow view mode, I'm in Column view.

Thanks for that clarification. I have a 0.5 TB drive with plenty of files on it. So this isn't an option I'd take lightly! :)

I have a TM backup so might try reinstalling from that but the bug may be reintroduced.

I've had these same exact ame issues as well:

it crashes while viewing mp4 and mp3's

While slow with jpg and pdf it does work

after "upgrading" to 10.9 from 10.8 on a 2007 MBP4,1. None of the usual techinques addressed the problem—creating a new user fixed it but only under that new user account—so I've been looking for a workable, non-disruptive solution.

This evening I tried something I _thought_ I'd tried early on but apparently either didn't do or didn't have success with when I did: booting the problem user account in Safe Mode, then rebooting it in regular mode. While in Safe mode, I couldn't get the media to actually play via QuickLook, but I did get the QL viewer to pop up and not vaporize the Finder.

After the reboot, all the previously-problematic filetypes (mp3, wav, mp4, m4v) now preview as expected under my regular user account. Joy!

I'm not sure what got flushed or unwedged by that one Safe Mode boot, but it definitely took care of my QuickLook issues. Will the fix be permanent? We'll see.