Windows Registry Editor Version 5.00

; Google Chrome — force-install Alyren (replace EXTENSION_ID with the 32-char id)
[HKEY_LOCAL_MACHINE\Software\Policies\Google\Chrome\ExtensionInstallForcelist]
"1"="<EXTENSION_ID>;https://clients2.google.com/service/update2/crx"

[HKEY_LOCAL_MACHINE\Software\Policies\Google\Chrome\ExtensionInstallAllowlist]
"1"="<EXTENSION_ID>"

; Microsoft Edge (Chromium) — same id if you force Edge too
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Edge\ExtensionInstallForcelist]
"1"="<EXTENSION_ID>;https://clients2.google.com/service/update2/crx"