I tried that but I found that its effects on long term memory leakage weren't adequate for me, and it still consumed way too much RAM. Which is why I just decided to limit RAM for Firefox. It achieves a similar effect as the browser unloads tabs when it runs low on memory, it just doesn't wait until it's using 31GB of RAM and instead just uses up to 8GB (which is what I capped it at) before unloading tabs.