I, never, ran into as many problems, as this time.
I tried, as usual, the incremental update. I worked, closed Firefox, and nothing happened. I went to the system manager, and deleted the firefox.exe, which was still present. Only then, the updater.exe showed up, but it, quickly disappeared. At one time, Firefox loaded with the wrong profile. I had been using two profiles, and enter into the Target line, the desired profile, like this:
"C:\Program Files\Mozilla Firefox\firefox.exe" -p default1
, but it opened with default2, which had not been entered. It took long time, which included my deleting two firefox.exe lines in the system manager. Finally, now, after nearly one hour, I have been able to open Firefox as desired.
I have no idea what is going on. My computer seems to have problems running too many tasks, at once. There was a windows update, with a single update, which did not complete after one hour.
My AntiVirus scan, which I do, daily, is still chugging along, after nearly three hours. A scan takes about one hour and twenty minutes.
We will see, later, what happens, especially since Zone Alarm Firewall did not ask me to allow the new Firefox update.
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.4) Gecko/20100611 Firefox/3.6.4 (.NET CLR 3.5.30729)