Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More
Echekwara

Thunderbird crashing on startup on MAC Ventura

48hz7ypcn8

Thunderbird keeps crashing on startup with msg: Crashed Thread: 4 Breakpad ExceptionHandler

Exception Type: EXC_CRASH (SIGKILL (Code Signature Invalid)) Exception Codes: 0x0000000000000001, 0x0000000000000000

Termination Reason: Namespace CODESIGNING, Code 2 Invalid Page

So, it looks like the the app "signature" is corrupted. How do I remove signature and and correct for valid signature. Thanks.

Thunderbird keeps crashing on startup with msg: Crashed Thread: 4 Breakpad ExceptionHandler Exception Type: EXC_CRASH (SIGKILL (Code Signature Invalid)) Exception Codes: 0x0000000000000001, 0x0000000000000000 Termination Reason: Namespace CODESIGNING, Code 2 Invalid Page So, it looks like the the app "signature" is corrupted. How do I remove signature and and correct for valid signature. Thanks.

All Replies (3)

Sorry for not responding sooner.

Did reinstalling help? If not, do you get any mozilla crash reports?

Did you get the previous message?

Did you solve your problem?

The notification system had been broken for several weeks, so I'm posting again to be sure you saw my response earlier.

If you still have trouble, please post more detail.