Thanks, and yes I have
CCleaner seems to rid of the cache from here, and so should the default Firefox cleaner built in.
Only issue is, the contents must be going somewhere else.
If in Private Browsing mode for example...
I just want to know where, so I can actually rid of it. Fresh Diagnose which found the files doesn't say where the files are, or allows you to remove them. Says the idea is concept only, but they are definitely on the machine.
They're just web address history, but would still like to get rid of them
Turns out a restart must have done it. Just recent browsing history is there now. Weird.
Thanks anyway though