All extensions disabled due to expiration of intermediate signing cert

Update: We have rolled out a partial fix for this issue. We generated a new intermediate certificate with the same name/key but an updated validity window and pushed it out to users via Normandy (this should be most users). Users who have Normandy on should see their add-ons start working over the next few hours. We are continuing to work on packaging up the new certificate for users who have Normandy disabled.

I've deleted my extensions thinking it was the extensions' issue. I'm trying to download again but it's telling me I don't have internet connection. Any work-arounds?