Crash on launch issue with Microsoft Edge Canary on macOS


Hello insiders, 


Earlier today we released build to the Canary channel. Unfortunately, this build contained a bug which caused some macOS users to crash on launch. We have now fixed this bug and released to the Canary channel. Your device will be automatically updated in the coming hours, but if you'd like to get the fix immediately the easiest way to do it is to download and install the PKG file from Just click on "Download" for the Canary channel and install just as you did the first time. Your settings and browsing data will be preserved. 


Please let us know if you have any other issues or questions, and once again thanks for being an insider.


-David Rubino

Microsoft Edge Team

3 Replies

@David Rubino 

Hi, I have this kind of issue but with the dev channel build, it crashes every time it's launched.

@David Rubino 


I started noticing Edge Canary crashing last week (or earlier). I stopped using it. 


Today I tried again - now on Version: (78.254.1908210), which is still crashing immediately on launch.


Crashed Thread: 25

Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000

VM Regions Near 0:
__TEXT 0000000105baa000-0000000105c2e000 [ 528K] r-x/rwx SM=COW /Applications/Microsoft Edge Edge Canary

Thread 25 Crashed:
0 libsystem_platform.dylib 0x00007fff7741dfcc _simple_salloc + 52
1 libsystem_platform.dylib 0x00007fff7741e658 _simple_asl_msg_new + 11
2 libsystem_platform.dylib 0x00007fff7741e5bf _simple_asl_log_prog + 31
3 libdispatch.dylib 0x00007fff771e5cd3 _dispatch_log + 204
4 libdispatch.dylib 0x00007fff771e628d _dispatch_bug_deprecated + 50
5 libdispatch.dylib 0x00007fff771f7e4c _dispatch_source_set_runloop_timer_4CF + 565
6 libsmartscreen.dylib 0x00000001188e4588 0x11871e000 + 1861000
7 libsmartscreen.dylib 0x000000011890877f 0x11871e000 + 2008959
8 libsmartscreen.dylib 0x00000001189869fd 0x11871e000 + 2525693
9 libsmartscreen.dylib 0x00000001188f7c8a 0x11871e000 + 1940618
10 libsmartscreen.dylib 0x00000001188f7aca 0x11871e000 + 1940170
11 libsmartscreen.dylib 0x0000000118869c2f 0x11871e000 + 1358895



@David Rubino 




I downloaded latest Edge for MacOS catalina. Version 79.0.309.18 (Official build) Beta (64-bit)


It's constantly crashing when trying to launch.


It does work if I try to launch it as admin from CLI:

sudo /Applications/Microsoft\ Edge\\ Edge\ Beta.

Note that during installation it asked me for admin password which I provided.


Process: Microsoft Edge Beta [95621]
Path: /Applications/Microsoft Edge Edge Beta
Version: 79.0.309.18 (79.309.19110918)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Microsoft Edge Beta [95621]
User ID: 501

Date/Time: 2019-11-17 12:54:33.961 +0200
OS Version: Mac OS X 10.15 (19A602)
Report Version: 12
Anonymous UUID: BCC9C015-0FCE-EA1E-8D22-C976E04B4F05

Sleep/Wake UUID: 46ADCA17-1B39-4003-963B-2C7C91B6548A

Time Awake Since Boot: 80000 seconds
Time Since Wake: 5700 seconds

System Integrity Protection: enabled

Crashed Thread: 0 Dispatch queue:

Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [95621]