I use Firefox, Seamonkey and Chromium in rotation to make sure that anything web-related I build works is somewhat cross-browser compatible. While FF 57 is usa

I use Firefox, Seamonkey and Chromium in rotation to make sure that anything web-related I build works is somewhat cross-browser compatible. While FF 57 is usable on my Thinkpad 42p I can not say it is twice as fast as the previous version. Maybe the speedup depends on having a multi-core CPU, something which is notably absent in this 2004-vintage machine. Be that as it may, I think FF 57 is about as fast as its predecessor in general: faster in some tasks, slower in others, notably slower in scrolling.