Themes no longer working!?

[jscher2000]

There seems to be a general issue right now:

Thread: Add-ons not working due to certificate expiration

My firefox updated today to latest version. As soon as I opened it, my addons were declared useless by firefox. I removed them and tried re-installing, but the site firefox sometimes says, “download failed. check your connection” even when I have a very good internet and when the extension downloads, it says, “addon could not be installed, it seems to be corrupted.” I tried reinstalling firefox multiple times, and even downloading the extension and then opening through firefox, I still get the c…

Cause/remedy still TBD.