Crashes browser after some time?

[Neo]

I have windows 7 OS, updated chrome and firefox 7.0 version but in short time i saw several time browsers is crashes. Error msg is "check the online solution" and "close the programs"
Also below that i saw

Problem signature:
Problem Event Name:BEX
Application Name:chrome.exe
Application Version:31.0.1650.63
Application Timestamp:529e8b45
Fault Module Name:sprote~1.dll
Fault Module Version:0.0.0.0
Fault Module Timestamp:51011825
Exception Offset:000b343f
Exception Code:c0000417
Exception Data:00000000
OS Version:6.1.7600.2.0.0.256.1
Locale ID:1033
Additional Information 1:5476
Additional Information 2:5476682141d4674d2067edfcd556b168
Additional Information 3:a58f
Additional Information 4:a58f3265a75ae02f28fbc3099a8cdb4e

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I have also Quick heal antivirus..
What is the exact problem?