Extension Manager doen not show any extension

[mikebind (Mike Bindschadler)]

This is due to a temporary issue related to the extension manager server being upgraded. The workaround process is described here:

Downloading extensions for older releases

Due to the recent transition to the updated Extension Manager and Data Store infrastructure, when using Slicer-4.11 (or older) version, users will need to manually download and install extensions from the new extension server, and download data sets from an alternative server instead of using the Data Store module. Rationale for the transition can be found here. We anticipate that this will be a temporary measure will the transition is finalized. Thank you for your patience! Please do not hes…