Vivaldi CEO Jon von Tetzchner, the brains behind both the new Vivaldi browser and the early Opera browser, has accused Google of retaliating against his company after he questioned its customer privacy practices. Vivaldi's Google Adwords campaigns mysteriously were suspended just two days after von Tetzchner's remarks criticizing Google's handling of customer data were published this spring, he said. Von Tetzchner had lamented the fact that too much personal information was being collected on ordinary consumers for use in targeted advertising.