Back button redirects to new page?

[exostencil]

OK, I'm sorry if this is a known issue, but I did a search and didn't see anything similar.

I'm running Firefox 3.6b5 and have NoScript set to block all scripts, but temporarily allow top-level sites by default (full addresses).

So, I ran into a few sites today that did something I have never seen before. When I hit the back button (or backspace) in Firefox, I was directed to a completely new site rather than the previous page in my history list.

Three Questions:
1) Is this something new that dastardly site admins are dropping on users or has this been around for a while?

2) Can we prevent this kind of behavior (even for white-listed sites) with the current build of NoScript? (1.9.9.30)

3) If not, is this kind of protection in development at the moment?

Thanks in advance!

[therube]

URLs where this happens?

If you disable NoScript, does the same occur?

[exostencil]

I don't remember what website(s) caused the behavior. If it happens again I'll write down the URL for sure.

So I'm guessing this is something fairly new then...