Jon Stephenson von Tetzchner is the founder and former CEO of Opera Software. He and Geir Ivarsøy were part of a research group at the Norwegian state phone company (now known as Telenor) where they developed browsing software called MultiTorg Opera. The project was abandoned by Telenor, but Geir and Jon obtained the rights to the software, formed a company of their own, and continued working on it. Now known simply as Opera, the Internet browser has become very popular despite the competition.
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Vivaldi browser, the brainchild of Opera co-founder Jon von Tetzchner, has introduced ad and tracker blockers in both mobile ...