firefox tab crash during testrun

[MCH]

We are experiencing random crashes from firefox tabs in our test runs with TestComplete and with TestExecute.
In the log-files we have a dmp from firefox available but i didn't find an option to attach it here.
We are using the following software versions:

Mozilla Firefox ver.108.0.0 (x86)

TestComplete or TestExecute 15.48.1.11

The error in firefox looks like this:
FF_Tab_Crash

[rraghvani]

Looking at https://support.mozilla.org/mk/questions/1363215 you might have an add-on that might be causing an issue.

[MCH]

we don't have any add-ons installed in firefox on the test computers

[MCH]

Unfortunately we are still struggling with this issue. Meanwhile i tried to analyze the dmp file saved with the testruns and it shows an error with the xul.dll from Firefox. I submitted a question to the mozilla support forum:
https://support.mozilla.org/en-US/questions/1424031 

[rraghvani]

This will require TestComplete and Firefox to liaise with one another! Firefox will need to see what call is being made by TestComplete, and then for Firefox to debug their application. This will pin point exactly where the crash is occurring on Firefox.

Have you also reported this issue with SmartBear via TestComplete: New Support Request?

[MCH]

Yes, I reported this Issue as case 00544047.
But we haven't been able to recreate the issue in a small example. The error occurs only in our general testruns over night and in random projects on random points. 
Therefor we were not able to create a report with the [TestComplete]\x64\Bin\ReportGenerator.exe

[rraghvani]

If the crash is not consistent, then it will be difficult to reproduce by TestComplete and Firefox.

Access violation "ffffffffffffffff" means that the program tried to access memory that was not reserved in the scope i.e. attempted to access memory it did not have permission to read, write, or execute.

It could be a number of things that could cause this!