Opera 7.21 browser arrives: kiosk mode revived, other enhancements

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Opera Software simultaneously launched Opera 7.21 for Linux (SPARC, Intel, PPC), FreeBSD (Intel), Solaris (SPARC), and Windows. New features include
less annoying ads in the free (advertising-supported) version, an “undo” for accidental window closures, and a “kiosk” mode for limiting functionality
on public computers.

Link: linuxdevices.com