That was a long night. The crashing took precedence....simply becasue linux wuld not stay open long enough to 'play' with firefox and trash-mail.
After some exhaustive testing it turned out to be hardware.....a pcie card which I bought to plug my ssd into and increase its speed etc etc etc...
I did a restore to one of the dates on which trashmail could not exist....and the restore failed....because it could not find the ssd
Basically....it died. permanently.
I took the ssd card out and hooked up the ssd in normal fashion....and the crashes have gone.
back on topic : I have opened and shut firefox numerous times and the 'tab' does not reappear.....and yes, Bat66, you are quite correct it was a 'pinned tab'....I will have to be a damn site more diligent in future......not sure what i clicked on to bring that about.
Lipper....i took a peek in startup applications and there is nothing there worthy of mention. I disabled one which is no longer on my pc.
The problem is gone.
ps...I have a new motherboard and cpu etc coming...mebbe today...mebbe early next week......my ssd will finally achieve what it is meant to achieve, and the "weirdness" that I have experienced with this motherboard will forever disappear !
Condobloke ...Outback Australian fed up with Windows antics...??....LINUX IS THE ANSWER....I USE LINUX MINT 18.3 EXCLUSIVELY.
“A man travels the world in search of what he needs and returns home to find it."
It has been said that time heals all wounds. I don't agree. The wounds remain. Time - the mind, protecting its sanity - covers them with some scar tissue and the pain lessens, but it is never gone. Rose Kennedy