Firefox Follows Apple in Blocking Third-Party Cookies Online
- Mozilla browser will bar these web tracking tools by default
- Google Chrome is only top browser without this privacy feature
Photographer: Simon Dawson/Bloomberg
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Mozilla Corp.’s Firefox browser joined Apple Inc.’s Safari in blocking certain kinds of online tracking, leaving Google’s Chrome as the only major browser that doesn’t bar these tools by default.
Going forward, new downloads of Firefox will automatically block trackers known as third-party cookies, which can follow users around the web and log their activity. Safari blocked them in 2017. Earlier this year, reports that Google might do the same sent shares of some ad tech companies lower. But in May the Alphabet Inc. unit chose an alternative approach that lets users decide whether to opt out.