So, whenever my computer froze while browsing, I think it has always happened through chrome. It is true that my computer has frozen during other phases of booting and after booting, but whenever freezing happened while browsing, I think it was chrome.
Sorry, I was wrong. The last freezing happened while I was browsing in firefox.
I rebooted in safe mode and followed the steps to fix chrome and here is the fixlog.txt
Fix result of Farbar Recovery Scan Tool (x64) Version:07-09-2015
Ran by Rajagopal Kumar (2015-09-07 17:49:03) Run:4
Running from C:\Users\Rajagopal Kumar\Desktop
Loaded Profiles: Rajagopal Kumar (Available Profiles: Rajagopal Kumar & rajagopal ravikumar)
Boot Mode: Safe Mode (with Networking)
==============================================
fixlist content:
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CHR Extension: (Pop Up Blocker Program ) - C:\Users\Rajagopal Kumar\AppData\Local\Google\Chrome\User Data\Default\Extensions\cdbefhoembdcnpapmodimamlnahaciih [2014-10-09]
CHR Extension: (Adblock Plus Popup) - C:\Users\Rajagopal Kumar\AppData\Local\Google\Chrome\User Data\Default\Extensions\eaglijdkglfgnodgahnfalkohplchphh [2014-10-09]
CHR Extension: (Ad Block Express) - C:\Users\Rajagopal Kumar\AppData\Local\Google\Chrome\User Data\Default\Extensions\ankoaclbfmdocnmjbokdkohpehjjinen [2013-11-25]
CHR Extension: (Ad Block Express) - C:\Users\Rajagopal Kumar\AppData\Local\Google\Chrome\User Data\Default\Extensions\lbcmmpmjjaockhkcofljpakjcbmjmgla [2013-02-10]
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C:\Users\Rajagopal Kumar\AppData\Local\Google\Chrome\User Data\Default\Extensions\cdbefhoembdcnpapmodimamlnahaciih => moved successfully
C:\Users\Rajagopal Kumar\AppData\Local\Google\Chrome\User Data\Default\Extensions\eaglijdkglfgnodgahnfalkohplchphh => moved successfully
C:\Users\Rajagopal Kumar\AppData\Local\Google\Chrome\User Data\Default\Extensions\ankoaclbfmdocnmjbokdkohpehjjinen => moved successfully
C:\Users\Rajagopal Kumar\AppData\Local\Google\Chrome\User Data\Default\Extensions\lbcmmpmjjaockhkcofljpakjcbmjmgla => moved successfully
==== End of Fixlog 17:49:03 ====