[sf-lug] what's better than firefox?

[jim]

     I'm running firefox 52.0.2 (64 bit) and terminal I/O
is painfully slow and getting more so. Seems (from top
output) that firefox is hogging the CPU.
     Maybe there's a way to run  firefox  at a nice level
of 10 or so, and maybe there's some other browser that
is not a big CPU and RAM hog.

     Anybody got advice?

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# cat /etc/issue
ubuntu 12.04.5

root at jim-lap:~# cat /proc/cpuinfo
processor    : 0
vendor_id    : GenuineIntel
cpu family    : 6
model        : 58
model name    : Intel(R) Core(TM) i3-3120M CPU @ 2.50GHz
stepping    : 9
microcode    : 0x12
cpu MHz        : 2500.000
cache size    : 3072 KB

root at jim-lap:~# free
              total       used       free     shared    buffers cached
Mem:       8094716    7425636     669080          0     853416 3964156

# top | head
top - 02:18:15 up 28 days, 22:16,  3 users,  load average: 0.91, 0.94, 0.95
Tasks: 190 total,   2 running, 188 sleeping,   0 stopped,   0 zombie
Cpu(s):  4.5%us,  0.5%sy,  0.1%ni, 94.9%id,  0.0%wa,  0.0%hi, 0.0%si,  
0.0%st
Mem:   8094716k total,  7605548k used,   489168k free,   853420k buffers
Swap:  8798204k total,     5376k used,  8792828k free,  3972336k cached

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+ COMMAND
  6833 jim       20   0 3433m 966m  76m R   36 12.2   3350:44 firefox
  1535 root      20   0  187m  55m  15m S    4  0.7 443:19.59 Xorg
  2123 jim       20   0 1244m 111m  27m S    2  1.4 220:16.38 compiz