Bidirectional URL redirection from host to client may not work with Firefox Browser from version 64 and above.

Scenario:

• Configure Bi-directional URL redirection policy for specific URLS which can be redirected to open on endpoint's browser –Firefox 64.0 version. 
• You run the command "C:\Program Files (x86)\Citrix\System32\VDARedirector.exe /regAll" on the VDA and run command "C:\Program Files (x86)\Citrix\ICA Client\redirector.exe /regAll" on the endpoint 
• You see BHO (Browser Helper Object) registered  in IE and not in Firefox version 64 and above

Workaround:

Follow these steps to open the URL under Firefox in Client end point:

1. Install Citrix Workspace App - 18.12.0.12(1812) that is available in web, on a Windows 10 x64 Version 1709 (OS Build 16299.847)
2. Added the store as part of Workspace App, as shown below:



3. Install Mozilla Firefox version 65 (32-bit) on to the client machine (This is not default web browser)
4. Create client-side policy as shown below:



Note: You will need the admx template from Workspace App 1812 for the above Bidirectional Content Redirection policy to be displayed.

5. In an administrative command prompt, run command gpupdate /force
6. Execute command "C:\Program Files (x86)\Citrix\ICA Client\redirector.exe /regAll /Verbose" on the client machine or endpoint
7. Open IE and check if the Add-on is loaded 
8. Create a server side policy on DDC (Delivery Controller) (version  7.15 LTSR):



9. Execute gpupdate /force command from an Administrative command prompt of the DDC
10. Execute "C:\Program Files (x86)\Citrix\System32\VDARedirector.exe /regAll" on the VDA
11. Restart the VDA and Client or Endpoint
12. Launch the Desktop from the client machine
13. Open IE instance on VDA (ICA Desktop  session) and open https://google.com, Client machine will open the URL in Edge browser as it may be set as default browser
14. Log off from the ICA session
15. Set Mozilla as the default browser on the client machine or end point
16. Perform steps 12-13 as mentioned above
17. Mozilla Firefox should open up the URL, instead of Edge



 

---

Problem Cause

BHO (Browser Helper Object) add-on can't be registered into new version of Firefox as it doesn't use new method for add-on registration.

The New version Firefox (e.g. version 65) requires new method for add-on registration, refer to below MDN article:
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Distribution_options/Add-ons_in_the_enterprise#Installation_using_the_Windows_registry