You can also try to disable the Java Quick Starter extension: Tools -> Addons -> Extensions Control Panel -> Java -> Advanced tab -> Miscellaneous -> Java Quick Starter (disable)

See also http://www.java.com/en/download/help/quickstarter.xml - What is Java Quick Starter (JQS)? What is the benefit of running JQS? - 6.0

See:

• http://kb.mozillazine.org/Firefox_crashes
• Firefox crashes - Troubleshoot, prevent and get help fixing crashes

Still if you have the problem

• Create new firefox profile

https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

new profile created month ago, didnt help. Now i try to uninstall Java for test. Thank you!

Try to boot the computer in Windows Safe mode with network support (press F8 on the boot screen) as a test to see if that helps.

Do a malware check with some malware scanning programs on the Windows computer.
Please scan with all programs because each program detects different malware.

Make sure that you update each program to get the latest version of their databases before doing a scan.

• Malwarebytes' Anti-Malware:
  http://www.malwarebytes.org/mbam.php
• SuperAntispyware:
  http://www.superantispyware.com/
• Microsoft Safety Scanner:
  http://www.microsoft.com/security/scanner/en-us/default.aspx
• Windows Defender: Home Page:
  http://www.microsoft.com/windows/products/winfamily/defender/default.mspx
• Spybot Search & Destroy:
  http://www.safer-networking.org/en/index.html
• Kasperky Free Security Scan:
  http://www.kaspersky.com/security-scan

You can also do a check for a rootkit infection with TDSSKiller.

• http://support.kaspersky.com/viruses/solutions?qid=208280684

See also:

• "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

virus and malwarecheck are made, windows reinstalling tried, no luck. Yesterday i uninstalled Java, 20 hours and crashed again few minutes ago, during reading a website, foxyproxy add-on enabled, about 15 tabs opened:

https://crash-stats.mozilla.com/report/index/bp-446288f3-0ed3-4be1-98a9-e170c2130304

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

• Do NOT click the Reset button on the Safe mode start window or otherwise make changes.

• https://support.mozilla.org/kb/Safe+Mode

Did you try a direct connection without using a proxy?

• Tools > Options > Advanced : Network : Connection > Settings
• https://support.mozilla.org/kb/Options+window+-+Advanced+panel

See "Firefox connection settings":

• https://support.mozilla.org/kb/Firefox+cannot+load+websites+but+other+programs+can

unfortunately crashes still happen every day, many times, on both laptops. Im computer technician in big company, so im sure that there is no malware, viruses, or Windows7 problems on my PC-s. Everything checked and doublechecked. All other software works flawlessly, RAM checks done, no overclocking etc.

The crash report is in the ws2_32.dll and that file is part of Windows sockets.

• bp-446288f3-0ed3-4be1-98a9-e170c2130304

This could indicate a problem with the current connection settings.

Are you currently using a (company) proxy to connect?

• Tools > Options > Advanced : Network : Connection > Settings
• https://support.mozilla.org/kb/Options+window+-+Advanced+panel

See also "Firefox connection settings":

• https://support.mozilla.org/kb/Firefox+cannot+load+websites+but+other+programs+can

thanks for quick answer, yes i use Foxyproxy Standard latest version plugin for "smart" proxy redirections. It has two rules for two special sites, all other sites get "direct network connection" without proxy. Googled and never found that foxyproxy would cause crashes. Also i cannot disable this plugin, because its the only purpose i use firefox, 24h monitoring of some websites. I will try to inspect foxyproxy configuration closely, will try to disable some parts of the filter masks for testing, thanks, think we are close to the cause:)

checked my foxyproxy filters, no syntax errors, no duplicate entries, everything as supposed to be. Still got four crashes today, attached.

image attachment is buggy, try two:

bp-83823b97-09d5-4c05-a55c-cef4b2130320 
bp-da19c451-286d-40dc-b1f3-f60d32130320 
bp-454aa6d0-66cc-4329-850f-3c1142130320 
bp-cb519944-2b99-4979-bbb9-d05d72130320 

new morning, new crashes. Crashes more often than usual, in 6 hours I had 5 crashes:

bp-71320136-fbc8-4644-9166-61b662130321 
bp-e7543bc6-0321-450f-a00b-575c62130321 
bp-a07f0208-2397-4413-b377-51df12130321 
bp-3e63e30c-0745-4d1d-9485-3e28f2130321 
bp-93497eb1-025d-45eb-9ebc-458b92130321 

almost all crashes occured during simple reading of a website, idle, without touching mouse or keyboard