[BrianR]

I usually use Firefox. Recently, it downloaded a security update, and I allowed it to install. Now, Firefox refuses to recognise my DNS or other numerical information and thus access the internet.

Mozilla and IE still work fine.

I forgot to make a go back point so that isn't an option.

Anyone know how to make Firefox behave again? Or do I have to go the hard route and find a copy of the older version and install that?

Brian