Has anyone else seen this.
Using the spread version of DDG in a website application, FireFox seems to keep a memory of user searches (see below).

To see the list you just click in the active search window. If the window is not active click in the window once to activate and the second click pops up the list.
I'm still working with a site in preview mode (not live), if that makes a difference.
It seems to be limited to FireFox and the spread version of DDG.
I've tried both the HTTP and HTTPS addresses for DDG and it still happens.
The list even remains after you shutdown FireFox and restart.
I am assuming at this point this is a FireFox thing, but I don't like it and I would like to code it away.
All suggestions would be appreciated.
Thanks,
OldHack