Hi Guys, seeking your expertise. Sincere Thanks for your time. Will try to keep this short and detailed. Here goes; 1) been using Firefox6 with Wins7 (64bit) SP1 without any problem for 10 months. 2) No recent hard/soft ware added. (Then things/performance began slowing down about 2-3 weeks ago 3) Was only last 2 days that Firefox 6 kept crashing under normal usage and after Firefox normal tabs recovery, BSOD would sometimes appear (never b4 has my Firefox crash even under many tabs open) 4) Updated to Firefox 9 and latest java & Adobe plugins and tried resitting rams from slot 1,3 to 2,4 and FF9 still crashes, (sometimes BSoD just happens right after start up of computer) View attachment MiniDump.zip Attached is the Minidump, CPU-Z, RAMmon & Wins Mem Diagnostics Tool. I did what i could do. Apologies if i left out anything as im not too good with computer stuffs. (it took me 2 days to prepare and start a thread. lol) Let me know and i upload it again Would be glad if someone could decipher the minidump info and find the root cause. p/s: i have used Peazip to zip Minidump instead of Winzip as my Winzip trial version has expired Cheers!