Can't Download add-ons with Curse Client

I've had Curse client a while now and it only worked when I installed it for the first time. It will not download add-ons on Firefox or Internet Explorer as it does not recognise the type.

Any suggestions on how to tweek FF, IE or the application to allow downloading and installation of the add-ons.

Thanks!

hell i cant even download Curse client.... this blows hard...evry thing i try vista says it will destroy my pc wassup...did download auctioneer but instructions to add on didnt work i give this site 3 thumbs down.

dude im right there with ya...it blows that u cant download the stuff u want

while you're right there with him...
I'm right there with you!!!

Client allway's use to work for me, but not lately, for some reason I keep getting a window saying "Curse client should be working, but isn't" ...

Shame... Like i said, allway's worked perfectly for me up untill now...

...I cant even download a ad-on....I think Curse had a MAJOR malfuction....

Is there no way anyone can be contacted to let them know of the fault?