Opera’s built-in ad blocker is an opt-in feature that helps web pages load faster by blocking ads. It also stops harmful tracking cookies and cryptocurrency mining scripts.
Clear browser cache/history/cookies
If you block ads, web pages will load faster and look cleaner. By blocking ads with Opera’s built-in ad blocker, you also block the source of many tracking cookies. The ad blocker also stops cryptocurrency mining scripts.
Theme – dark vs. light You can switch between two themes, light or dark. These themes change the appearance of the browser’s tab bar and the combined address and search bar. By default, Opera is set to light theme. To enable dark theme, click on Easy Setup on the right side of the toolbar and turn…
Clear cache and cookies in Settings > Privacy and security > Clear browsing data (or with Ctrl or ⌘ + Shift + Del)