I went directly to Mozilla (via IE7), and downloaded the exe file (again), and ran it immediately, and this time, it executed normally.
When I tried to start Firefox, it said it was running already, and that I needed to restart the system. I did this, but it still gave me that message.
A quick search about this "already running" message brought me to a suggestion that the my profile in Firefox wasn't there.
I followed the directions to "start-run-firefox.exe -profilemanager" and this allowed me to create a new profile (I made sure that no other profiles were there), then when I restarted Firefox, it opened normally.
I had already copied my bookmark.html (bookmarks) to the desktop, which I then imported, and now everything is running fine.
Don't know what caused all this from the beginning, but there is sure a lot of information posted out there, that helped me get the answer.
Computer: HPa730n, XP home, 1.5 Gb RAM, 400 Gb HD, AVG free, Ad-aware, spybot running.
Just yesterday, it was Firefox was seemingly running fine. I had the latest version running (2.0.etc). Then, today, whenever I ran it, it would work for a bit, then a window would pop up, saying that a problem occurred, and it has to shut down.
I tried uninstalling it, downloaded a new copy (with IE7), attempted the exe file, then got the message that the extraction failed, and "file corrupt." I cleaned out temp files, disabled the AVG, then tried it again. No change.
I did a system restore point, to a week earlier. Firefox ver. 2.0.etc. was there, but when I tried to launch it, it wouldn't launch.
I found the great instructions on how to repair Firefox (John Wilkerson), and went through his instructions. I got to the point of downloading the exe file, launched it, but it gave the same message of "extraction failed, file corrupt."
I could sure use some advice on how to get Firefox up and running again. Thanks.