How To Troubleshoot Chrome Extension Issue When It Has Blocked By Policy

How to troubleshoot an error : "UiPath extension for chrome setup completed successfully, but it's blocked by policy Chrome will not activate it unless the block is removed or the extension is whitelisted. Policy level : Machine (registry) Policyname : ExtensionintallBlocklist Blocked extension ID: * ? "

This issue occurs when ExtensionInstallBlockList is set to "*" which means no extensions can be installed unless they are white listed exclusively.

Resolution: Whitelist the UiPath Chrome extension by following the below steps,

  1. Open Registry editor (this might need admin access)

  2. Create registry in HKCU\Software\Policies\Google\Chrome\ExtensionInstallAllowList path

  3. Right Click -> New -> String Value -> Value Name =1 and Value data =

[Note : Value Name should be the one number ahead of currently present numbers in the desired registry key. For instance: if the registry contains 1,2,3 already then for the new registry key the Value Name should be 4]

  1. Restart the machine post making the changes. The changes should be reflected in the chrome policy window (chrome://policy).

In case the NativeMessagingHost is also blocked:

Check if NativeMessagingBlockList is set to *. If so, white list the same by following the below steps:

  1. Open Registry editor (this might need admin access)

  2. Create registry in HKCU\Software\Policies\Google\Chrome\NativeMessagingAllowlist path

  3. Right Click -> New -> String Value ->Value Name =1 and Value data = com.uipath.chromenativemesg_v2

  4. Restart the machine post making the changes. The changes should be reflected in the Chrome policy window (chrome://policy).