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What is CefSharp.BrowserSubprocess.exe?

CefSharp.BrowserSubprocess.exe is an executable file that is part of the CefSharp software package. CefSharp is a project developed by The CefSharp Authors and is used to embed the Chromium web browser into C# or VB.NET projects. It is a legitimate software that is often used by developers to provide web browsing capabilities within their software.

The associated software, CefSharp, is good for embedding web browsing functionality into applications. It allows developers to display web pages directly in their application without the need for a separate web browser. This can be particularly useful for applications that need to display web content or use web technologies.

CefSharp.BrowserSubprocess.exe is needed because it is the process that runs the embedded Chromium web browser. Without this process, the web browsing functionality provided by CefSharp would not work. For example, in the case of AOL Desktop Gold, it uses CefSharp to display web content within the application. Razer Central, located at C:\Program Files (x86)\Razer\Razer Services\Razer Central, also uses CefSharp for the same purpose.

You should not remove CefSharp.BrowserSubprocess.exe as it is a legitimate software component. If it is causing problems, such as high CPU usage or memory leaks, or if it was installed as part of a software package that you no longer need or want, then you might consider removing it. Always make sure to uninstall the parent software properly to avoid leaving orphaned files or causing other issues.

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CefSharp.BrowserSubprocess.exe file information

The process known as CefSharp.BrowserSubprocess

belongs to software CefSharp or AOL Desktop Gold or Razer Cortex or Razer Synapse or Alt1 Toolkit or Lively Wallpaper or Facebook Games Arcade or Amazon Photos or Garmin Express or CyberGhost (version 8) or Tobii Game Hub or Facebook Gameroom or Amazon Cloud Drive or Amazon Chime or TigerText Desktop Messenger or ProSeries (version 2020) or L-Connect (version 3) or Play withSIX Windows client or Trade-Ideas Pro AI

by or AOL (www.aol.com).

Description: CefSharp.BrowserSubprocess.exe is not essential for Windows and will often cause problems. CefSharp.BrowserSubprocess.exe is located in a subfolder of "C:\Program Files (x86)" or sometimes in a subfolder of the user's "Documents" folder or in a subfolder of C:\Windows or in a subfolder of Windows folder for temporary files—for example C:\Program Files (x86)\Razer\Razer Services\Razer Central\ or C:\Program Files (x86)\Razer\Razer Cortex\Cef\. Known file sizes on Windows 10/11/7 are 17,200 bytes (22% of all occurrences), 6,656 bytes and 75 more variants. file.net/process/cefsharp.browsersubprocess.exe.html 
The Playtika Slotomania app can be downloaded from the Windows Store on https://www.microsoft.com/store/apps/9WZDNCRDSKLW.
The program has no visible window. It is not a Windows core file. The file has a digital signature. CefSharp.BrowserSubprocess.exe appears to be a compressed file. Therefore the technical security rating is 43% dangerous, but you should also take into account the user reviews.

Uninstalling this variant: The software vendor offers the option to do the following:
  1) uninstall the associated program (Start > Control Panel > Uninstall a Program > Razer Cortex or DeepL)
  2) contact www.razerzone.com Customer Service
  3) verify that you have installed the latest version.

Recommended: Identify CefSharp.BrowserSubprocess.exe related errors

Important: Some malware camouflages itself as CefSharp.BrowserSubprocess.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the CefSharp.BrowserSubprocess.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.

Score

User Comments

this software using 100%++ CPU
   
Looks like GitHub windows application runs this process as well.
  Dmytro  
Microsoft Power BI
  Darek  
CefSharp.BrowserSubprocess.exe is part ofCefShar. CefSharp lets you embed Chromium in .NET apps. It is a lightweight .NET wrapper around the Chromium Embedded Framework (CEF) by Marshall A. Greenblatt.
  TimK  
I noticed it running during Avira Software Updater update to Flash Player
  Maggie  
In case it appears to be part of GITHub
  George   (further information)
Github client has two of them.
  GitHub user  
By right-clicking on the process and selecting Properties-- Digital Signatures, I can see that it is a subprocess of my Mailbird application. So in this instance, it is safe.
  MrsB33  
Confirmed for PowerBI, installed C:\Program Files\Microsoft Power BI Desktop\bin
  Bozford   (further information)
facebook Gameroom uses this file
  Niko Sundqvist  
This process also appears to be associated with the TigerText secure chat client. If you're using TigerText, it's essential.
  DrRandyG  
This is also installed and part of Incomedia's WebSite X5 Evolution (v13). The latest version of AOLDesktop Gold kept crashing and this showed up in the Windows Task Manager process window multiple times (5-20 instances) and various KB (at least up to 1.5MB). After I deleted this EXE (and Website X5), the instances rarely exceeded 50k — and it never seemed to be needed by AOL.
  richard gebhart  
i saw its from the facebook gameroom app. it is ok.
  Stamper  
Aol Gold starts a copy of this for every window you open. all close at exit (most of the time) As many as 40 can be running at one time causing terrible slowdown on the entire computer and eventually crashing aol gold and sometimes the whole computer
  bob reno  
It comes in the new AOL Gold
  David  
Part of PowerBI, cool charts from Microsoft
    (further information)
9/22/17 - Appears to be embedded in the new "AOL Gold" desktop update. Consumes huge amount on memory. Horrible.
  Injuneer  
For me, it's part of the Mailbird email client
  IGnoNothing  
Appears to be used for Mimecast, an Outlook/email add-in.
  chowell   (further information)
Used along with Escape From Tarkov Launcher
  escapist  
It was PowerBI
  Developer  
I just downloaded GarminExpress from garmin.com When i start garmin Expresstray.exe the CefSharp.browsersubprocess.exe starts with it. I think its the software that scans your USB port for Garmin device. :)
  Vick from Switzerland  
I'm running the VPN Tunnel Bear (not a bad VPN) and it uses CefSharp. No problems so far.
  Mach  
Tobii Gaming Hub also uses this
  Nathaniel W  
also used in the garmin express app
  lisa  
Used by many application - nothing to worry about
  Dan  
It is a subprocess, evidently, of the latest AOL Desktop program. It seems to be an extreme resource hog, but when I delete it, AOL won't work right.
  Gary Adkison  
Seem to be used for Mimecast too.
  doylesb1  
it installs with MailBird
  test123  
The escape from tarkov launcher comes with this file and runs at the same timeas the launcher does.
  W  
It is part of the Razer Cortex application, so I'm positive that you shouldn't worry if you have that program installed.
  Seddy   (further information)
Used by Shoebox Photo software
  Acacia Kali   (further information)
It is part of Razer Synapse and is harmless.
  Sammee   (further information)
It shows up [2 instances] in my Family Tree Maker program by McKiev.
  Sherry  
It has a bunch of Razer Cortex modules loaded in my case. (I'm running the experimental version of Cortex 3) Seems to be fine.
  Michael Lück  
Appears while playing Dauntless
  AleXst4400  
Garmin Express installed this, is used by application.
   
It appeared after Garmin express lifetime updated, It is located in C:\Program files (x86)\Garmin\Express size is 8192 bytes.
  David B Teague  
Razer Synapse uses this Process.
  badfrog  
Ah for me it was the Alt1 Toolkit that didn't close properly from yesterday, it was using up like 60% cpu usage across 2 of it's services overnight
  anonymous  
During the latest Microsoft update, April 2019, this file and associated files *.pak, *.dll, and *.bin files were placed in my Garmin/Express directory. The files cannot be deleted. (An error message comes up saying the files are being used in the Garmin/Express directory.)
  ClassicCity  
It´s also part of Garmin Nüvi control program called Garmin Express. Uses in idle mode 100% GPU, no CPU recognised. Since I can´t find cefsharp on my system and taskmgr doesn´t show it, it might be a virus (silent miner) wich could have infect me yeserday as I used an old USB stick wich wasnt 100% save to use. Will post more if it´s still running after killing Garmin express on my Win10
  German Garmin User  
PowerBI
  SR  
It is located in Garmin Express (Navigation Software updater) folder.
  GarryL  
appears to be part of Garmin Express
  garmin express user  
For me, it is being called by the Garmin Express update software in C:\Program Files (x86)\Garmin\Express on WIN7 64. Seems pretty innocuous; low mem, low cpu usage, necessary for Garmin Express, but for as much as I use Garmin Express it doesn't make sense for me to have it running in the background.
  Placeholder  
Found it in my Garmin Express directory. Uninstalled Garmin Express {I don't use it}. cefSharp was deleted with the uninstall. Deleted from memory too.
  John  
Part of the Razer suite of controls/customizations
  Holo  
When I open AOL Desktop Gold, apparently this process is part of the deal. It eats up available memory and, eventually, causes me to have to restart my computer. If this is part of AOL (I've been a member since 56k modem times), I'll have to seriously consider abandoning AOL. Will cause great consternation with email, etc.
  Tom Baxter  
It appears when I'm running the Family Tree Maker (FTM) program against each page I have open (Usually two). According to Mackeiv, makers of the app, it is not associated with their program. I don't have any of the other apps you mentioned.
  Diane D.  
It's also now part of the AOL client.
   
Used by DeepL for Windows
  Bruno G.   (further information)
Also comes with the Deepl translation tool.
  Mike  
It gave me several threats in Windows Defender
  Bross  
This process is using 973.9 MB (1GB) of RAM for no particular reason. A very unprofessional, rogue process hacked in by Razer at some juncture seems likely. It has to do with on-board memory and macros perhaps as well. With the program Process Lasso, setting a rule if it exceeds "x" virtual-memory with the Watch-Dog feature will make the process go away without effecting the Razer Synapse garbage.
  Loren B  
CefSharp.Browsersubprocess.exe is loaded by aolgold but does not unload when aolgold is unloaded. Copies of moduel stay loaded an use memory and cpu cycles until online apps no longer execute.
  David Patria  
some software uses this to manage its services, it is my case. If you are unsure, you can go and check the properties and see what you are using it
  jonyLongavara  
It's killing my 10 year old Win 7 laptop. It runs as a sub-process of Mailbird. CPU ends up 100% and RAM 2.5GB... it's a bit extreme. I reckon the developers need to look at this.
  Mario  
My antivirus reported it as malicious in the amazon chime roaming directory. Unsure if it actually contains malware.
  Jeroen Elsen   (further information)
Deepl App is using this
  CeKay  
It was located in lively wallpaper.
  XxSkyline224xX  
Fidelity's Active Trader Pro uses it.
  Tom K  
Starts when Razer systems boot, but upon ending the task specifically Razer systems don't suffer. Causes nothing more than a less than 1% usage of memory.
  Jared  
Used By Lively live wallpaper app.Needed for funcioning. Safe to use, only uses around 50 Mb and partially uses Gpu (live wallpaper-animation).
  Alain S.  
Not sure how it got on my computer. Impossible to find. I keep getting message "! Breakpoint: A breakpoint has been reached." This is normally if I have AOL open with two or more programs running. The programs will freeze or, a couple of time, simply disappear and I have to reboot. VERY frustrating. I must get it off this computer.
  Dave-O  
For me, Cefsharp.Browsersubprocess is inside the files of Paprika 3 (which is a paid software sans the free trial, Paprika is used for recipe management, I just got it today). Norton notified me that it was trying to access my webcam. Nothing that I was doing in the program, or anywhere else on my PC, should have prompted that. I suspect that it isn't inherently malicious since it seems like it's bundled with different types of legitimate software, but that it can be exploited as spyware, seemingly with ease, since the attempts to access my webcam weren't too long after downloading the software.
  A  
It is also in Alamode Total appraisal software (CefSharp.Alm.BrowserSubProcess.exe), four instances, first noticed it 07/2021 using 3-10% cpu constantly while at idle, although I have been using the software since 2007 and never saw it before. There is also an Adobe CEF Helper .exe and several Adobe AcroCEF.exe instances, likely associated with Adobe Acro tray or Creative Cloud, but they are not using any significant CPU.
  Mike C.  
CefSharp.BrowserSubprocess.exe is a valid part of Razer Synapse and Central for Razor Mouse and other hardware. File size 17.2KB. Digital Signature Razer USA Ltd. C:\Program Files (x86)\Razer\Razer Services\Razer Central
  Xaber Rebax   (further information)
It's also found in Lively Wallpaper C:/Users/ username /AppData/Local/Programs/Lively Wallpaper/plugins/cef/CefSharp.BrowserSubprocess.exe
  na   (further information)
It's maybe installed by a mouse driver named RAZER~.
  hulala  
Cefsharp is not a virus, there are lots of application that uses cefsharp
  Abhishek   (further information)
It is included in the Skylum Neo AI picture editor and requires access to the web for the software to function. I don't like the idea of that at all and even though I paid for the s/w I feel like uninstalling it given the suspicious nature suggested by the information above.
  Jay  
Extremely high RAM commit for how little RAM it's actually using. I think it might have a RAM leak.
  Vest  
Part of the TwitchLeecher App. Standard process to be running.
  Chris  
It has suddenly started popping up for my QuickBooks programs! I've had QuickBooks on my computers for years and within the last few months it has started popping up with notifications from AVG asking if I want to Allow or Deny. I always say Deny and it comes right back. The path shows QuickBooks. When I run Task Manager, it shows up under any QuickBooks programs I have open (I'm a bookkeeper and have multiple QB programs open at once - different versions). It won't go away and it won't stop!
  A. DeFelice  
CefSharp.BrowserSubprocess.exe is used by Family Tree Maker from MacKiev for merge new data into its data and find and replace operations.
  Just a genealogist  
I got the exe by the installation of DEEPL and it was gone after de-installation of this program.
  Erysipelothrix  
If installed with Razer Central it is a bitcoin Mining Trojan
  Dr. Petersen  
Pops up occasionally with box already checked to allow someone to access my computer in a public place.
   
Intuit's Lacerte products 2016-current
  GHuser111   (further information)

Summary: Average user rating of CefSharp.BrowserSubprocess.exe: based on 87 votes with 80 user comments. 24 users think CefSharp.BrowserSubprocess.exe is essential for Windows or an installed application. 29 users think it's probably harmless. 16 users think it's neither essential nor dangerous. 12 users suspect danger. 6 users think CefSharp.BrowserSubprocess.exe is dangerous and recommend removing it. 17 users don't grade CefSharp.BrowserSubprocess.exe ("not sure about it").


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Best practices for resolving CefSharp issues

A clean and tidy computer is the key requirement for avoiding problems with CefSharp. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To get your computer running as fast as it did on day one, you can 8reset your PC. Your personal files will remain intact, but any programs you installed will need to be reinstalled.

To help you analyze the CefSharp.BrowserSubprocess.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. A good Bantivirus software detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.



Other processes

CefSharp.BrowserSubprocess.exe [all]