File Name: xpcom_compat.dll
Bit: 32
Latest version: 1.8.20080.20121
Size: 72.1 kb
Language: -
Description: -
Company: Mozilla Foundation

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Download xpcom_compat.dll file for Windows 7, Windows 8, Windows 10 and fix xpcom_compat.dll is missing or not found dll error. The latest version of xpcom_compat.dll file is v1.8.20080.20121 which is a 32 with a file size of approximately 72.1 kb. Mozilla Foundation is the developer of xpcom_compat.dll and the file belongs to -.

What is xpcom_compat.dll ?

DLL stands for Dynamic Link Library. xpcom_compat.dll is a file that contains code, resources and data that other programs can use. Thus, Dlls provide a way to modularize applications so that their functionality can be updated and reused by other applications. Dll's also help to reduce application size and memory footprint since many applications can share the same code contained in a single Dll file such as xpcom_compat.dll.

How to fix xpcom_compat.dll error?

If you are here because your seeing xpcom_compat.dll errors in your Windows such as :

  • xpcom_compat.dll not found
  • xpcom_compat.dll is missing
  • Failed to load xpcom_compat.dll
  • or any other similar dll error

There are number of ways to fix xpcom_compat.dll errors. Below you will find 2 such ways:

How to install xpcom_compat.dll file?

Where do I put xpcom_compat.dll file? Download xpcom_compat.dll and copy it to the application’s installation folder.

Make sure to download xpcom_compat.dll 32-bit file for 32-bit Windows operating system and xpcom_compat.dll 64-bit file for 64-bit Windows operating system if they are available. Most new Windows systems would probably be a 64-bit one. You can check to see if your computer is running a 32-bit or a 64-bit version of Windows by doing:

Windows 10 and Windows 8.1
  • Select the Start button, then select Settings > System > About.
  • At the right, under Device specifications, see System type.
Windows 7
  • Select the Start button , right-click Computer, and then select Properties.
  • Under System, see the system type.

After you are done with above installation instructions, try restarting the application throwing xpcom_compat.dll is missing error.

If that doesn’t fix the error, copy the xpcom_compat.dll to the systems directory. This can vary between Windows OS versions. Check out the systems directory path for different Windows versions below:

  • C:\Windows\System (For Windows 95, 98, Me)
  • C:\WINNT\System32 (For Windows NT/2000)
  • C:\Windows\System32 (For Windows 7, Windows 8, Windows 10)

Restart your Windows and see if the error is fixed.

How to register xpcom_compat.dll file?

If the error persists, try to register the xpcom_compat.dll in Windows registry. This can be done by using the “REGSVR32” command prompt and giving the dll file xpcom_compat.dll.

  • Windows > Click Start > Run
  • REGSVR32 xpcom_compat.dll

Make sure you run the command as administrator from the Run Box.

Once you are done registering the xpcom_compat.dll in the Windows system’s registry, you should be good to go. Restart your Windows once again and xpcom_compat.dll missing error should be fix.

Clicking on 'Download xpcom_compat.dll' button below will take you to the download page where you will see list of xpcom_compat.dll versions with bit, file size and other details of of the file. It is recommended to download the latest version of xpcom_compat.dll to fix dll errors which is v1.8.20080.20121.

Download xpcom_compat.dll