Hello-
The problem is that no links are marked as visited. I did a Google search and this seems to be a problem that is afflicting a small number of users. Theories range from "hitting the back key undoes the visited link color change by design" (wrong, doesn't matter how I return to the previous page) to "the Remember visited links option in tools, options, privacy is set to "0 Days" (not in my case) to another program erasing color changes for privacy reasons, and so forth. Some people think it's a bug related to CSS, Java, or a firefox configuration issue, etc.
Some think we mamby pamby complainers should just get over it since there are so few of us that this is happening to and all the other great firefox features make up for it (This is True!)
Anyway, going to Tools, Options, General, Fonts & Colors, and choosing Link Colors you want firefox to use and then check Always use my: Colors is the easiest fix.
There is an extension on Mozilla's site called LinkVisitor that allows you to manually mark links as visited or not but that seems rather tedious although it's useful in other ways as well.
Hope this helps...
NEW INFO! A solution that seems to work very well can be found here:
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