[Fixed] Firefox 105.0.1 (Dutch) upgrade goes wrong

I'm a long time user of firefox portable and current version is 105.0 in dutch language!.

I have downloaded the new Dutch version 105.0.1 from the sourceforce pages but i think there is something wrong in this file.
Size is only 16.957.440 bytes.
And after executing i have small blue windows 10 security warning screen.
When close this screen i get another small popup that says "installer integrity check failed" ? ?.
Seems some kind of "nsis error"?.

There is no way i can proceed in the upgrade.
I checked in my archive files, and dutch firefox portable version 105.0 is 121.943.432 bytes on my disk.

F.Y.I. I run Dutch windows 10 Home - 21H2 with all latest updates in place.
I upgrade firefox and some other portable software as stand-alone software.

Any clues whats going on?.

Thanks.

Thomas