Opera Mini uses Safari to display non-HTML-content it's not able to show, e.g. PDFs or videos.
If you select Opera Mini to be your default browser you'll thus run into a situation where it tries to open sth. in Safari, but instead - since BrowserChooser tells it to use Opera - opens a new tab, which in turn will try to open in Safari again.
You'll end up in an infinite loop of tabs opening one after another.
Opera Mini uses Safari to display non-HTML-content it's not able to show, e.g. PDFs or videos.
If you select Opera Mini to be your default browser you'll thus run into a situation where it tries to open sth. in Safari, but instead - since BrowserChooser tells it to use Opera - opens a new tab, which in turn will try to open in Safari again.
You'll end up in an infinite loop of tabs opening one after another.