Firefox Memory Efficiency Initiative

Mozilla's Firefox 136, released in May 2026, slashes memory footprint by 40% compared to the 2025 baseline, a reduction faster than the average browser update's 15% improvement. It achieves this through lazy extension loading, optimized DOM tree management, and intelligent cache eviction, all while keeping full feature parity. This initiative is 25% more aggressive in memory savings than Firefox's previous optimization attempt in 2024.