This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Tor Browser version of Firefox has stopped working error every time I close it

  • 4 respostas
  • 1 has this problem
  • 1 view
  • Last reply by Mattia

more options

I'm using "Tor Browser 7.5.6 (based on Mozilla Firefox 52.9.0) (32-bit)" on Windows 7. For the last several versions and still now, almost every time I use the browser and then click the X to close it, I get the error:

Tor Browser has stopped working Windows can check online for a solution to the problem.

Problem Details: Problem signature:

 Problem Event Name:	BEX
 Application Name:	firefox.exe
 Application Version:	52.9.0.6607
 Application Timestamp:	00000000
 Fault Module Name:	nssckbi.dll_unloaded
 Fault Module Version:	0.0.0.0
 Fault Module Timestamp:	00000000
 Exception Offset:	61cdda4c
 Exception Code:	c0000005
 Exception Data:	00000008
 OS Version:	6.1.7601.2.1.0.256.48
 Locale ID:	1033
 Additional Information 1:	0a9e
 Additional Information 2:	0a9e372d3b4ad19135b953a78882e789
 Additional Information 3:	0a9e
 Additional Information 4:	0a9e372d3b4ad19135b953a78882e789

Read our privacy statement online:

 http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:

 C:\Windows\system32\en-US\erofflps.txt
I'm using "Tor Browser 7.5.6 (based on Mozilla Firefox 52.9.0) (32-bit)" on Windows 7. For the last several versions and still now, almost every time I use the browser and then click the X to close it, I get the error: Tor Browser has stopped working Windows can check online for a solution to the problem. Problem Details: Problem signature: Problem Event Name: BEX Application Name: firefox.exe Application Version: 52.9.0.6607 Application Timestamp: 00000000 Fault Module Name: nssckbi.dll_unloaded Fault Module Version: 0.0.0.0 Fault Module Timestamp: 00000000 Exception Offset: 61cdda4c Exception Code: c0000005 Exception Data: 00000008 OS Version: 6.1.7601.2.1.0.256.48 Locale ID: 1033 Additional Information 1: 0a9e Additional Information 2: 0a9e372d3b4ad19135b953a78882e789 Additional Information 3: 0a9e Additional Information 4: 0a9e372d3b4ad19135b953a78882e789 Read our privacy statement online: http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409 If the online privacy statement is not available, please read our privacy statement offline: C:\Windows\system32\en-US\erofflps.txt

All Replies (4)

more options

In ancient days, a similar behavior was associated with saving history and setting Firefox to start up with windows and tabs from your previous session: https://trac.torproject.org/projects/.../10761. However, that one appears to have been fixed, it's probably something new.

A BEX event usually occurs when Windows detects a suspicious use of another program's memory space. It can be caused by security software or malware.

The nssckbi.dll file is related to Firefox's certificate store (e.g., trusted root certificates shipped with Firefox). I don't know why nssckbi.dll would be involved in the shutdown process.

Since this doesn't affect your regular use of the browser, and Firefox 52 ESR reaches its "end of life" in a couple of months when Tor browser moves to a Firefox 60 base, I don't know how much time you want to invest in troubleshooting this series.

more options

''Hi, Icabody.'' For Tor Browser using are "advanced connection" in place of "Connect", in order to configure your choice of network, Keep us informed about what happens.

more options

Mattia said

''Hi, Icabody.'' For Tor Browser using are "advanced connection" in place of "Connect", in order to configure your choice of network, Keep us informed about what happens.

Was that a question or an instruction? Sorry, but I did not understand at all.

more options

it's an education