Nokia 308 - Manual (Page 67)

Clear browsing history
Select internet.
A cache is a memory location that is used to store data temporarily.
If you have, or have tried to, access confidential info or a secure
service, requiring passwords, clear the cache after each use.
Clear the cache or cookies
While browsing a website, select > tools > clear the cache or clear
cookies.
Prevent cookies from being stored
Select > settings > security > cookies > reject.
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