UiPath Fail to Communicate with Chrome after Chrome update

Help Studio
1

Hello Team,

I’m using UiPath community edition. I got my Chrome browser updated to version “149.0.7827.54”. Post this update, I’m facing the below error.

“Cannot communicate with the browser, please check the UiPath extension.”

The extension is enabled in both studio and Chrome browser. But still facing this issue.

I tried uninstalling extension from studio and installing it again. But it didn’t help.

Requesting for help on this please?

Please note that it’s still working fine with Edge browser.

Thank you.

2

@shahidhaqeel.s

Check from browser as how you did from UiPath studio uninstalling and installing extension same as do from browser extensions as well, refer followed documentation,

Studio - Troubleshooting.

Happy Automation

3

@shahidhaqeel.s Since Edge is working fine, the issue looks Chrome-specific. After the Chrome update, the UiPath Chrome extension may still appear enabled, but the Native Messaging Host may not be running correctly. UiPath also mentions that this error can happen when the Chrome extension is not enabled or when ChromeNativeMessaging.exe is not running.

Please try the below steps:

  1. Close all Chrome windows from Task Manager.
  2. Open UiPath Studio.
  3. Go to Home → Tools → UiPath Extensions.
  4. Select Chrome → Uninstall.
  5. Restart Studio.
  6. Again go to Home → Tools → UiPath Extensions → Chrome → Install.
  7. Try installing with Native Host Only or Current User option.
  8. Open Chrome and go to:

chrome://extensions

  1. Enable UiPath Browser Automation extension.
4

@shahidhaqeel.s

Check if this is helpful.

5

Try running these commands one by one in a cmd.exe console as Administrator:

reg add "HKLM\SOFTWARE\Policies\Google\Chrome\NativeMessagingAllowlist" /v "1" /t REG_SZ /d "com.uipath.chromenativemsg_v2" /f

reg add "HKLM\SOFTWARE\Policies\Google\Chrome\NativeMessagingAllowlist" /v "2" /t REG_SZ /d "com.uipath.portable_host" /f

reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "DeveloperToolsAvailability" /t REG_DWORD /d 1 /f

reg add "HKLM\SOFTWARE\Policies\Google\Chrome" /v "NativeHostsExecutablesLaunchDirectly" /t REG_DWORD /d 1 /f

setx UIPATH_OPEN_BROWSER_TIMEOUT_SECONDS "120" /M

setx UIPATH_ENABLE_OPEN_BROWSER_RETRY "1" /M

Close the Chrome browser
Retry to run the automation again.

Does it help?

6

Hello all,
I am having the same issue on Edge, it was working fine at least until June 1st 2026, came back to my project today and it throws the error:
Cannot communicate with the browser, please check the UiPath extension. Exception from HRESULT: 0x80040234
I re installed the extension on both UiPath studio and Edge, please advise.
I am not allowed to use any other browser per company policy.

7

Hello Marian,
This fixed the issue for me using Edge. Thank you so much!
For users using Edge, just substitute Google\Chrome on the commands for Microsoft\Edge, as this:
reg add “HKLM\SOFTWARE\Policies\Microsoft\Edge” /v “DeveloperToolsAvailability” /t REG_DWORD /d 1 /f
reg add “HKLM\SOFTWARE\Policies\Microsoft\Edge” /v “NativeHostsExecutablesLaunchDirectly” /t REG_DWORD /d 1 /f

8

Hi @marian.platonov

This resolved the issue.

Thank you.