How to Minimize Writes to SSD in Firefox
Solid-state drives typically excel in sustained file transfers, but only the best SSDs can perform random write operations without lagging. Therefore, you may find that the Firefox Web browser slows down or pauses when modifications are made to the disk cache on a computer with an SSD. In addition, minimizing writes to an SSD may help extend its life, because flash memory becomes unreliable after several thousand write-erase cycles. Move the Firefox disk cache to your computer's RAM to extend the life of your SSD and improve browsing performance.
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Instructions
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Launch the Firefox browser. Type "about:config" in the address bar, and then press "Enter."
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Click "I'll be careful, I promise."
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Click the "Filter" field at the top of the window, and type "browser.cache.disk.enable."
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Double-click "browser.cache.disk.enable." The "Value" column changes to say "False."
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Position the mouse cursor over an open area of the window, and right-click. Click "New," and then click "Integer." A new window titled "New Integer Value" appears.
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Click the text field, and type "disk.cache.memory.capacity." Press "Enter."
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Type the amount of your computer's memory that you would like to devote to the Firefox browser cache in kilobytes. For example, type "262144" to devote 256MB of system memory to the browser cache. Remember that while Firefox is running, this memory will not be available for other applications to use.
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Press "Enter."
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