hello milad1988, please update to firefox 34 which should fix this kind of crash: https://www.mozilla.org/firefox/all/

In the address bar, type about:crashes<enter>. Note: If any reports do not have BP in front of the numbers, click it and select Submit.

Using your mouse, mark the most resent 7 - 10 crash reports, and copy them. Now go to the reply box below and paste them in.

The crash report flagged these programs;

IPSEng32.dll = Symantec Intrusion Detection

IPSLdr32.dll = Symantec Intrusion Detection

icudt52.dll = International Components for Unicode

Please download the current Firefox version. Is there still a problem?

Download Firefox Full Installer For All languages And Systems {web link}

You can try to disable OMTC and leave hardware acceleration in Firefox enabled.

• about:config page: layers.offmainthreadcomposition.enabled = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

• http://kb.mozillazine.org/about:config

You can try to disable hardware acceleration in Firefox.

• Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.

• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
• https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration