hello, is this a pc in a managed environment? these crashes are caused by the library nlsp.dll, which appears to be part of external software from NetOp.

Dear Philipp,

Thank you for your fast reply. Yes, this PC is part of a computer lab at our university; also Netop is used to control this lab.

any suggestions on how to solve this problem (other than uninstalling/removing NetOp).

Thank you again for your help.

Best, Anis

you may want to contact netop's support as well to see if they have a software update available that could address this issue.

Dear Philipp,

We removed the NetOp temporally from 3 PCs in the Lab, two of which Firefox crashed while using them the day before.

In one of the PCs (that Firefox crashed earlier), Firefox crashed again but with a new crash report with different details:

https://crash-stats.mozilla.com/report/index/2b0fd6a6-49f9-4f7a-8d58-417432141127

Please advise.

Thank you again for your continuous help. Best, Anis

hi anis, that crash signature isn't as clear-cut unfortunately. does firefox crash on this computer repeatedly with this same signature? if so you could try to reset the affected firefox profile and see if this can address the issue...

Separate Issue; Your System Details shows;

Installed Plug-ins

Shockwave Flash 11.7 r700 Shockwave Flash 9.0 r45

Having more than one version of a program may cause issues.

Grab the uninstaller from here: Uninstall Flash Player | Windows Uninstall Flash Player | Mac Then reinstall the latest version.

Flash Player v15.0.0. 239 http://get.adobe.com/flashplayer/

What Windows are you using? The header says XP, but the report is NT.

The crash reports flagged these programs;

nlsp.dll = Danware Data A/S belonging to product NetOp School. or NetOp Browser Policy IP Filter or

nvwgf2um.dll = NVIDIA Compatible D3D10 Driver

Perform a System File Check to fix corrupted system files http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

See if there are updates for your graphics drive drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration

The user agent is Windows XP (NT 5.1) and the crash reports are about Windows 7 (NT 6.1).

You can check that you do not run Firefox in compatibility mode. You can open the Properties of the Firefox desktop shortcut via the right-click context menu and check the "Compatibility" tab. Make sure that all items are deselected in the "Compatibility" tab of the Properties window.