This is the Output.:
Seems Firefox is bad to my System :-S ... Sometimes over 90% :-O
.....
Processes: 60 total, 2 running, 58 sleeping... 204 threads 17:04:40
Load Avg: 2.27, 2.52, 1.97 CPU usage: 71.5% user, 9.9% sys, 18.5% idle
SharedLibs: num = 157, resident = 41.0M code, 4.65M data, 8.92M LinkEdit
MemRegions: num = 6576, resident = 166M + 12.1M private, 96.0M shared
PhysMem: 62.2M wired, 130M active, 289M inactive, 482M used, 29.1M free
VM: 4.02G + 125M 27905(0) pageins, 0(0) pageouts
PID COMMAND %CPU TIME #TH #PRTS #MREGS RPRVT RSHRD RSIZE VSIZE
246 top 7.9% 0:06.28 1 18 22 452K 424K 2.29M 27.0M
245 bash 0.0% 0:00.02 1 14 16 176K 872K 1.29M 27.2M
244 login 0.0% 0:00.03 1 16 37 148K 440K 1.65M 26.9M
242 Terminal 0.6% 0:02.06 5 97 135 1.88M 9.78M 17.8M 111M
228 Safari 0.0% 1:12.84 7 134 409 48.0M 26.2M 65.9M 198M
224 Mail 0.0% 0:16.03 7 162 267 10.3M 14.6M 19.9M 129M
222 automount 0.0% 0:00.10 3 40 30 308K 964K 1.04M 28.7M
218 firefox-bi 74.6% 9:49.92 8 100 307 30.2M 30.5M 47.3M 181M
217 automount 0.0% 0:00.11 3 42 34 308K 1000K 1.08M 29.0M
214 rpc.lockd 0.0% 0:00.00 1 10 18 108K 408K 192K 26.7M
205 nfsiod 0.0% 0:00.00 5 30 24 128K 352K 180K 28.6M
191 ntpd 0.0% 0:00.13 1 11 19 164K 556K 368K 26.9M
188 lookupd 0.0% 0:00.88 3 36 41 540K 1.02M 1.28M 29.0M
187 SymSeconda 0.0% 0:00.12 2 56 93 720K 4.51M 2.11M 92.5M
186 SymUIAgent 0.0% 0:00.43 4 68 149 1.37M 8.31M 4.56M 106M
185 SymQuickMe 0.0% 0:00.58 4 75 158 1.80M 10.5M 5.80M 111M