this doesnt really mean much for me though in everyday browsingFirefox 57.0: 189.73
Basilisk 2017.11.12 (~Firefox 55): 178.50 (5.92% slower)
Pale Moon 27.6.1 (~Firefox 52): 179.23 (5.53% slower)
what does matter is another fork of FF allows me to open another browser that has tabs related to a different subject
for example, Pale Moon is my everyday browser and has uMatrix and uBlock Origin
K-Meleon i use when i need to see a webpage without ad-blocking or script blocking
Internet Exlporer i use when i want to catch a video URL and download it thru Internet Download Manager, because its not integrated with the other browsers
SeaMonkey is another general purpose browser i use that has about 30 tabs in memory that i use from time to time
Waterfox - i use another group of related tabs here and with password manager as well
now i can use Basilisk for another group, maybe different twitter users, since i have too many on Pale Moon now