Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

9.0.1 0.80%
8.0.1 0.40%
6.0.2 0.40%
5.0.1 0.40%
5.0 0.40%
21.0 0.40%
21.0 0.40%
21.0 11.20%
20.0.1 3.60%
20.0 2.40%
20.0 0.80%
2.0b7 0.40%
19.0.2 10.80%
19.0.1 0.40%
19.0 8.80%
19.0 0.40%
19.0 0.40%
19.0 0.40%
19.0 0.40%
19.0 0.80%
19.0 0.40%
18.0.2 9.20%
18.0.1 10.80%
18.0 0.40%
18.0 2.80%
View more

Relationships

PE structurePE file structure
Show functions
Import table
kernel32.dll
GetCurrentProcessId, GetCurrentThreadId, GetTickCount, QueryPerformanceCounter, DisableThreadLibraryCalls, IsDebuggerPresent, SetUnhandledExceptionFilter, UnhandledExceptionFilter, GetCurrentProcess, TerminateProcess, InterlockedCompareExchange, Sleep, InterlockedExchange, DecodePointer, EncodePointer, GetSystemTimeAsFileTime
mozcrt19.dll
_except_handler4_common, _lock, __dllonexit, _unlock, __clean_type_info_names_internal, _crt_debugger_hook, __CppXcptFilter, _adjust_fdiv, _amsg_exit, _initterm_e, _initterm, _decode_pointer, _encoded_null, free, _malloc_crt, _encode_pointer, memcpy, _onexit
mozglue.dll
frex
mozutils.dll
frex
msvcr100.dll
DllMain
msvcr80.dll
DllMain
xul.dll
NS_CStringSetIsVoid_P, NS_StringGetIsVoid_P, NS_CStringContainerFinish_P, NS_LogInit_P, NS_GetComponentManager_P, NS_GetComponentRegistrar_P, NS_GetXPTCallStub_P, NS_NewNativeLocalFile_P, NS_CStringGetIsVoid_P, NS_GetServiceManager_P, NS_StringContainerInit_P, NS_CycleCollectorForget2_P, NS_CStringSetDataRange_P, NS_DebugBreak_P, NS_Realloc_P, NS_Free_P, NS_LogRelease_P, NS_CStringGetData_P, NS_StringGetMutableData_P, NS_GetTraceRefcnt_P, NS_StringCopy_P, NS_LogAddRef_P, NS_StringContainerInit2_P, NS_CStringSetData_P, NS_StringCloneData_P, NS_ShutdownXPCOM_P, NS_LogTerm_P, NS_GetDebug_P, NS_Alloc_P, NS_LogCOMPtrRelease_P, NS_CStringCopy_P, NS_CStringToUTF16_P, NS_CStringGetMutableData_P, NS_DestroyXPTCallStub_P, NS_CycleCollectorSuspect2_P, NS_InvokeByIndex_P, NS_CStringCloneData_P, NS_StringGetData_P, NS_StringSetDataRange_P, NS_StringSetData_P, NS_UTF16ToCString_P, NS_StringContainerFinish_P, NS_LogCOMPtrAddRef_P, NS_CStringContainerInit2_P, NS_LogDtor_P, NS_LogCtor_P, NS_CStringContainerInit_P, NS_InitXPCOM2_P, NS_NewLocalFile_P, NS_StringSetIsVoid_P, NS_GetMemoryManager_P, NS_CycleCollectorForget_P, NS_CycleCollectorSuspect_P
Export table
NS_Alloc
NS_CStringCloneData
NS_CStringContainerFinish
NS_CStringContainerInit
NS_CStringContainerInit2
NS_CStringCopy
NS_CStringGetData
NS_CStringGetIsVoid
NS_CStringGetMutableData
NS_CStringSetData
NS_CStringSetDataRange
NS_CStringSetIsVoid
NS_CStringToUTF16
NS_CycleCollectorForget
NS_CycleCollectorForget2
NS_CycleCollectorSuspect
NS_CycleCollectorSuspect2
NS_DebugBreak
NS_DestroyXPTCallStub
NS_Free
NS_GetComponentManager
NS_GetComponentRegistrar
NS_GetDebug
NS_GetFrozenFunctions
NS_GetMemoryManager
NS_GetServiceManager
NS_GetTraceRefcnt
NS_GetXPTCallStub
NS_InitXPCOM2
NS_InvokeByIndex
NS_LogAddRef
NS_LogCOMPtrAddRef
NS_LogCOMPtrRelease
NS_LogCtor
NS_LogDtor
NS_LogInit
NS_LogRelease
NS_LogTerm
NS_NewLocalFile
NS_NewNativeLocalFile
NS_Realloc
NS_RegisterXPCOMExitRoutine
NS_ShutdownXPCOM
NS_StringCloneData
NS_StringContainerFinish
NS_StringContainerInit
NS_StringContainerInit2
NS_StringCopy
NS_StringGetData
NS_StringGetIsVoid
NS_StringGetMutableData
NS_StringSetData
NS_StringSetDataRange
NS_StringSetIsVoid
NS_UnregisterXPCOMExitRoutine
NS_UTF16ToCString

xpcom.dll

Firefox by Mozilla Corporation (Signed)

Remove xpcom.dll
Version:   10.0.10
MD5:   72428a941ade48a4c95506e30aabfc57
SHA1:   31da43aafd649a6c3524ec22a6787f790fe11c33

What is xpcom.dll?

This is a component for Mozilla Firefox, a free and open source web browser developed by the Mozilla Foundation. Firefox uses the Gecko layout engine to render web pages, which implements current and anticipated web standards. Functions can be added through extensions, created by third-party developers. Firefox uses a sandbox security model, and limits scripts from accessing data from other web sites based on the same origin policy.

About xpcom.dll (from Mozilla Corporation)

“Mozilla Firefox is a fast, full-featured Web browser. Firefox includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, a streamlined browser window that shows you”

DetailsDetails

File name:xpcom.dll
Publisher:Mozilla Foundation
Product name:Firefox
Typical file path:C:\Program Files\mozilla firefox\xpcom.dll
File version:10.0.10
Size:19.47 KB (19,936 bytes)
Certificate
Issued to:Mozilla Corporation
Authority (CA):Thawte
Effective date:Monday, September 27, 2010
Expiration date:Sunday, October 30, 2011
Digital DNA
PE subsystem:Windows GUI
Entropy:6.335139
File packed:No
Code language:Microsoft Visual C++ 10.0
.NET CLR:No
More details

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Microsoft Windows XP 22.43%
Windows 7 Home Premium 20.56%
Windows 7 Ultimate 20.56%
Windows 7 Professional 8.41%
Windows 8 7.48%
Windows Vista Home Premium 6.54%
Windows 8 Pro 5.61%
Windows 7 Starter 3.74%
Windows 8 Pro with Media Center 0.93%
Windows Vista Business 0.93%
Windows 7 Home Basic 0.93%
Windows Vista Home Basic 0.93%
Windows XP Professional 0.93%

Distribution by countryDistribution by country

United States installs about 43.40% of Firefox.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 24.82%
Hewlett-Packard 17.52%
Toshiba 14.60%
Acer 13.14%
ASUS 10.22%
Lenovo 4.38%
Intel 2.92%
American Megatrends 2.19%
GIGABYTE 2.19%
Samsung 1.46%
Sahara 1.46%
Gateway 1.46%
Sony 1.46%
Compaq 1.46%
Packard Bell 0.73%
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