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Vienna-based advocacy group NOYB on Wednesday said it has filed a complaint with the Austrian data protection authority against Mozilla, accusing the Firefox browser maker of tracking user behaviour on websites without consent.
NOYB (None Of Your Business), the digital rights group founded by privacy activist Max Schrems, said Mozilla has enabled a so-called “privacy preserving attribution” feature that turned the browser into a tracking tool for websites without directly telling its users.
Mozilla had defended the feature, saying it wanted to help websites understand how their ads perform without collecting data about individual people. By offering what it called a non-invasive alternative to cross-site tracking, it hoped to significantly reduce collecting individual information.
While this may be less invasive than unlimited tracking, it still interferes with user rights under the EU’s privacy laws, NOYB said, adding that Firefox has turned on the feature by default.
“It’s a shame that an organisation like Mozilla believes that users are too dumb to say yes or no,” said Felix Mikolasch, data protection lawyer at NOYB. “Users should be able to make a choice and the feature should have been turned off by default.”
Open-source Firefox was once a top browser choice among users due to its privacy features but now lags market leader Google’s Chrome, Apple’s Safari and Microsoft’s Edge with a low single-digit market share.
Hundreds of complaints
NOYB wants Mozilla to inform users about its data-processing activities, switch to an opt-in system and delete all unlawfully processed data of millions of affected users.
NOYB, which in June filed a complaint against Google for allegedly tracking users of its Chrome browser, had also filed hundreds of complaints against big tech companies, some leading to big fines. — Supantha Mukherjee, (c) 2024 Reuters
