Right, so I did the tweaks (all of them) and I must tell you, now Firefox seems to be as fast as Chrome
I love em!
Pages load much faster now
What you mean to say is it feels more responsive like chrome. In actuality your page load times might even be longer but it's all about the perception (I'm not saying this is a bad thing).
Breaking it down:
Network Pipelining
On a relatively fast connection this probably makes stuff slower. The cost to open up the new connections will likely be too great so it won't be able to make up the time with getting the data faster (it also breaks a few sites although they're few and far between).
Increase maximum connections
Firefox increased their default maximum connection value to something sane already, depreciated 'tweak'.
Cache DNS queries
The 'tweak' is likely
old and depreciated.
Disable ipv6
Maybe if I disable ipv4 as well then it'll load even faster.
Reduce page loading delay
What I currently use:
content.interrupt.parsing = true
content.max.tokenizing.time = 100000 (defaults to 3x notify interval IIRC).
content.notify.backoffcount = -1
content.notify.interval = 100000
content.notify.ontimer = true
content.switch.threshold = 2000000
nglayout.initialpaint.delay = 0
YMMV, mine are pretty low values, slower computers probably wouldn't like it very much if you used them. Perception is such an evil thing.
Probably the only remotely useful thing in your original post on the other site is in this section. You did chose conservative values though (and didn't list them all) which is interesting I guess. I really don't know what to think of all this shit even after messing with it for years.
Cache Tweaks
Mostly depreciated (I guess). Firefox isn't retarded with RAM usage anymore and their on disk cache defaults to 1GB on most systems.
Some other useful firefox stuff:
http://waterfoxproject.org/
Slower javascript (not by much), feels more responsive (fuck yea intel compiler?).