hello Topcat_SC, please directly contact the extension developers through the means provided at its homepage - they can likely give you more detailed guidance and are the only ones who can fix bugs or make necessary adjustments in the addon for new firefox versions. thank you...

Try using this email address - contact AT aniweather.com

A few users have mentioned that the email address listed on the download page got no response.

Yeah it seems to be an issue on their end. Apparently the data source is down. weather its an RSS feed for this particular plugin or some other source data, it appears to no longer be a valid source, leaving our Plugins Null.

I sent a message myself as well to their support email and await a response. 

I hope the addon has not been orphaned and forgotten about. As it is about the best weather addon period, I've tried them all and its my favorite.

Only other that comes close is Forecastfox Weather, for those who may be looking for something else, in case this is an end of service for the add on.

Update:

I just received a reply from the Aniweather Team, here's there words Copy Pasted.

Thanks for reporting this issue. This is due to a recent Firefox upgrade. Our team is working on this and will release a new version to fix this compatibility issue asap.

Best regards, The Aniweather Team

So in sort Order things should be back up and working again.

Thanks Moonrakerdog ... I sent an email today also but have not heard back yet . I thought it might be something like that , I just didnt want to be waiting around for a fix if the problem was on my side. Thanks Again to all for the support here ..