Total Virtual Memory : 4,294,836,224 bytes (4.29 GB)
Available Virtual Memory : 3,201,142,784 bytes (3.2 GB)
Available Page File : 6,344,704 bytes (6.34 MB)
Available Physical Memory : 11,548,012,544 bytes (11.55 GB)
System Memory Use Percentage : 32
OOM Allocation Size : 72 bytes

That is a weird OOM (out of memory) report where not enough contiguous free memory is available. It seems that the memory use is severely fragmented and with only 32% in use Firefox isn't able to allocate space for 72 bytes. Do you let Windows handle the Page file automatically or have you set a fixed size for the Windows Page File ? * Control Panel -> System -> Advanced -> Performance -> Settings If you use a fixed size for the page file then try the automatic setting and let Windows handle the page file automatically. ---- <pre>Total Virtual Memory : 4,294,836,224 bytes (4.29 GB) Available Virtual Memory : 3,201,142,784 bytes (3.2 GB) Available Page File : 6,344,704 bytes (6.34 MB) Available Physical Memory : 11,548,012,544 bytes (11.55 GB) System Memory Use Percentage : 32 OOM Allocation Size : 72 bytes</pre>