See if Turning off hardware acceleration helps.

>>> See if Turning off hardware acceleration

What for ???? May be turn-off the computer better? So Chrome, Opera, IE and all versions of Firefox up to 22 works correctly!

please turn off hardware acceleration as the-edmeister has suggested & restart firefox afterwards, since it will be an important step in diagnosing if your graphics hardware plays a part in this issue.

you should update your plugins urgently (some of them are out-dated & have security vulnerabilities that are actively exploited on the web)!

Yes, I see :-)

Infirst : YES, when hardware acceleration is "OFF" the problem is absent.

But:

- if Firefox is started when acceleration is "OFF" and after start of Firefox the acceleration is turned "ON", than Firefox works correctly.

- if Firefox is started when acceleration is "ON" and after starting of Firefox the acceleration is turned "OFF", than Firefox has black screen and "no answer".

can you go to firefox > help > troubleshooting information, copy the graphics section of that page and paste it here into a reply? thanks

ok I'll do it

Graphics Adapter Description Mobile Intel(R) 4 Series Express Chipset Family Adapter Drivers igxprd32 Adapter RAM Unknown Device ID 0x2a42 Direct2D Enabled Blocked for your graphics driver version. DirectWrite Enabled false (0.0.0.0) Driver Date 5-1-2009 Driver Version 6.14.10.5068 GPU #2 Active false GPU Accelerated Windows 1/1 Direct3D 9 Vendor ID 0x8086 WebGL Renderer Google Inc. -- ANGLE (Mobile Intel(R) 4 Series Express hipset Family Direct3D9 vs_3_0 ps_3_0) windowLayerManagerRemote false AzureCanvasBackend skia AzureContentBackend cairo AzureFallbackCanvasBackend cairo AzureSkiaAccelerated 0

ok, try if it works with these updated graphic drivers and HWA turned on: https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=21828&lang=eng&OSVersion=Windows%20XP%2032-Bit%20Edition*&DownloadType=Drivers

many thanks :-)

The problem was solved.