On opening firefox a window appears warning 2 use IE or ...... and firefox closes. What 2 do.?

Answer 1

I agree with the previous answerer, and would strongly advise against using IE -- it's probably booby trapped by now to make things even worse for you. That's probably why that message appears -- to force you to use IE. I can't see the Mozilla people EVER telling you to use IE.

If you don't already have up-to-date anti-virus, anti-adware and anti-spyware programs on that machine, I'd suggest downloading them to another machine, copying them to CD or a Flash drive, and moving them to your sick machine that way.

I suggest you download Ad-Aware SE and Spybot S&D (they’re free), install them, update them and run them. If they don't seem to be able to get rid of everything they report finding, try running them again, this time in Safe Mode. Safe Mode prevents many instances of malware from loading and protecting itself against deletion of its files.

Also, turn off System Restore to evict any copies of bad stuff that might be lurking there.

To get into Safe Mode:

1. Log out and reboot your machine.
2. When the machine starts the reboot sequence, press the F8 key
3. Select Safe Mode from the resulting menu.
4. The machine will continue booting, but the Windows desktop will look different. You won't be able to see the Internet, for instance. You may have to log in as Administrator to delete the bad files.
5. When you're finished, log out and reboot back into normal mode.

Update and run both regularly, along with a good anti-virus package.

Good luck.

Answer 2

It's a virus. Get a good virus scanner, like Avast!

http://www.avast.com/