hello, could you provide your latest few submitted crash reports? please enter about:crashes into the location bar, copy the latest few report ids from there starting with bp- & paste them here into a forum reply. this will give us a better understanding what may be triggering those crashes.

Here they are the last 3 crash reports listed:

bp-a10f538b-1cb9-4609-9b12-4e4cb0180713 bp-9146ccfb-44fc-485f-85ab-e279d0180713 bp-fa13cff1-ffb6-46a5-9139-39f7a0180713

However Firefox crashed many more times than showed by about:crashes. I can see barely 4 crashes today in the list, while Firefox crashed at least 30 times today, and keeps crashing every few minutes.

thanks, these crashes are commonly caused by some outdated smartcard software/drivers. do you know which software product/version you have installed on your system?

I checked and updated 3 drivers, now the Intel Driver and Support Assistant software (I have an Intel NUC pc) says that all drivers of my system are updated. I'll report if crashes keep on.

no, the cuase will be something different - it should probably show up as something like "ID Protect Monitor" or athena. it's a smartcard driver/software which will allow it to identify yourself at some webmail or e-government sites via a physical smartcard connected to your system.

A long time ago I uninstalled the software/drivers of a smartcard reader, but I surprisingly found 2 of those softwares/drivers still there, "ID Protect Monitor" (as already pointed out) and "NXPProximityInstaller". I uninstalled them I had no crashes since then, so I can say the problem has been solved. Thanks a lot.