Hi there, I am running various browsers on my CentOS 6.5. Firefox is running smoothly, especially with blocking flash animations. I recently installed Opera and I use Seamonkey for long, both suffers from being very slow. Does CentOS have any role in this? For your information I send cpuinfo, some people on #centos said that this could be the problem -- but then why Firefox flies? - Gergely $ cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 95 model name : AMD Athlon(tm) 64 Processor 3000+ stepping : 2 cpu MHz : 1808.292 cache size : 512 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow up rep_good extd_apicid pni cx16 lahf_lm svm extapic cr8_legacy bogomips : 3616.58 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp tm stc