How many times have you looked at a page and wondered whether it's using HTML5? Me too.
HTML5-powered extension takes away all the effort involved - just look for the little HTML5 badge in the top right of the page! Works by checking a page's DOCTYPE.
The most full-featured Internet power tool on the market, Opera includes pop-up blocking, tabbed browsing, integrated searches, E-mail, RSS Newsfeeds and IRC chat.
What's New in This Release: [ read full changelog ]
· Uses compressed image (thanks @Mathias)
· Added z-index to icon (thanks RX-3200)
· N.B. Not intending to fade out the icon at this stage.