Crash report: https://crash-stats.mozilla.org/report/index/5c418fc2-8fbe-432e-9eaf-854000200909

Top 10 frames of crashing thread:

0 libobjc.A.dylib initializeNonMetaClass 
1 libobjc.A.dylib initializeAndMaybeRelock 
2 libobjc.A.dylib lookUpImpOrForward 
3 libobjc.A.dylib _objc_msgSend_uncached 
4 Foundation -[NSPlaceholderString initWithString:] 
5 Foundation +[NSString stringWithString:] 
6 KfSummary KfSummary@0xd303 
7 KfSummary KfSummary@0xcb25 
8 PrintCocoaUI PrintCocoaUI@0x26f2 
9 PrintCocoaUI PrintCocoaUI@0x8be7 

Encountered this crash on the old UI (seems to be one timer since I tried to reproduce this multiple times on the same profile using the same steps + repeating the steps on new profiles) on macOS 10.14.

I've reproduced this issue while accessing the following pdf document, clicking the print button from the page and initializing the print (Clicking the print button from the old UI) with the following options set:

• Pages from 1 to 3
• Landscape mode
• Ignore Scaling and Shrink to Fit Page Width.

Only one recent crash.

Again a crash under PrintingParent::ShowPrintDialog.

In reply to comment #0:

5 KfSummary KfSummary@0xd303
6 KfSummary KfSummary@0xcb25

KfSummary seems to be part of a third party Kyocera printer driver:

https://gist.github.com/jirutka/55f0c1f3357be666b7f7ca466a7a80e8

So this is likely a bug in third party software.

Closing because no crashes reported for 12 weeks.