ssd-speed-tweaks (Firefox)

Source

A good article on how to tweak your SSD

for example Firefox - Use memory cache

To change the cache location to RAM:
Open Firefox -> Type about:config into the address bar -> Enter -> double-click browser.cache.disk.enable to set the value to False -> Right-Click anywhere -> New -> Integer -> Preference Name "disk.cache.memory.capacity" -> value memory size in KB. Enter 32768 for 32MB, 65536 for 64MB, etc. -> restart Firefox