Overview

• Mozilla plans to eliminate the 'Do Not Track' (DNT) feature from Firefox starting with version 135, set for release on February 4, 2025.
• DNT, initially designed to signal websites not to track users, was widely ignored by websites and sometimes misused for browser fingerprinting.
• Mozilla recommends users switch to the 'Tell websites not to sell or share my data' setting, which is based on the Global Privacy Control (GPC) standard.
• GPC has gained more traction due to enforcement under laws like California’s Consumer Privacy Act and the EU’s General Data Protection Regulation.
• Other browsers like Apple’s Safari removed DNT years ago, and Mozilla’s decision reflects a broader shift toward more enforceable privacy measures.