@registradus
Yes, it is possible to remove or hide icons in the address bar of Opera by customizing the interface in the settings.

@felipecarv said in Opera repeetedly opening and closening:

The problem started when I opened the Flow feature, and then every time I try to open the browser, it accuses some "fail" and it seems to be related to some extension, but its to fast, I can't disable them to see if it works.

Try clearing your browser cache in Opera's settings to see if it resolves the issue.