From Opera nothing.
Outside, DropBox, pCloud...
The steps below would help on that task.
"Off topic Tip"
Follow the Signature's BackUp | Reset link.
Take the opportunity to start a Backup plan and even create a Template Profile.
SyncBack | Synkron helps.
Windows 7 (x64)
Opera Test profile | Opera Back up | Reset
@junaidahmedshawon said in Add more privacy centric features:
Add an option to delete cookies and other site data on browser exit.
Goto the URL opera://settings/content/cookies in Opera for that exit option.