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Practical Firefox Tweaks to Speed Up Browsing on Older or Low-Memory Machines

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Firefox users experiencing sluggishness or running older hardware can improve performance by first checking about:performance to find high-CPU tabs and extensions. The guide suggests enabling hardware acceleration and adjusting content process counts on machines with 4GB RAM or less. Several about:config tweaks are recommended, such as enabling WebRender, reducing session save frequency, and disabling prefetching, while noting that accessibility services should stay on for screen reader users. The author advises keeping extensions minimal, since content script extensions add overhead on every page, and notes that these changes matter most on low-RAM, older, or battery-powered devices rather than modern machines with 16GB or more RAM.

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