Browsers save a lot of data about your actions in them.
To clear your browsing data in Opera on Android, you gotta go into the in-app parameters.
Next, tap prefs at the bottom of the popup pane to initiate the in-app prefs.
Tap configs at the bottom of the popup pane to initiate the configs.
Scroll down to the bottom of the controls, then tap Clear browsing data in the Privacy sub-section.
Tap Clear browsing data at the bottom of the Privacy sub-section.
On the next page, you could choose what data types are deleted from your unit.
Browsing history is a list of all webpages that you have visited.
Open tabs is the list of currently open tabs.
Recent searches covers all of the searches performed via the URL bar.
Cookies and site data are little bits of data generally saved to your machine.
Site tweaks covers site-specific tweaks such as cookie preferences.
Passwords are saved website passwords.
Autofill form data is saved form content that can be automatically filled.
Next, there is an Advanced subsection, simply tap the Advanced to expand the list.
Bookmarks are all of your saved bookmarks.
Offline pages are webpages that youve saved for reading offline later.
Downloads is your list of downloaded files.
Speed dial covers the customisations youve made to the Speed Dial feature.
News personalisation are the topics of interest that youve set for the news feed on the new tab page.
Cache images and files is a selection of temporarily saved data on your machine.
choose the data types you want to delete, then tap Clear selected data.