Firefox is eating your SSD, here is the solution

[Peterm321]

Besides, I usually run off a live CD, so the SSD part does not mean much to me personally. But, the setting above also writes to the same file sessionstore.js when it is localized somewhere in RAM, so I believe anything that will free up RAM and CPU activity is good.

I was mistaken in my interpretation. However if the live CD is run with a savefile SSD writes may be happening depending where the profile is located.

Anyway another way to save memory is to limit the cache. I prefer to limit the cache to about 1/5th free RAM, others may prefer more or less:

about:config
browser.cache.disk.parent_directory
http://kb.mozillazine.org/Browser.cache.disk.capacity

browser.cache.disk.capacity
http://ccm.net/faq/40745-firefox-how-to ... les-folder

http://ccm.net/faq/40819-firefox-36-how ... cache-size

https://www.davidtan.org/tips-reduce-fi ... che-usage/

[tallboy]

One addition that came in Palemoon 27.3.0, and which doesn't seem to be part of a firefox setup, is browser.sessionstore.cache.behaviour:

Added an option (browser.sessionstore.cache_behavior) to control from which source restored tabs pull their page content:
0 = load restored tab data from cache (current behavior, default).
1 = refresh restored tab data from the network.
2 = refresh stored tab data from the network and bypass any cached data.

tallboy