Transmission

If anyone else get this error, it seems to be related to Firefox, not Transmission. I used Safari to dowload the same torrents and then opened and downloaded them in Transmission just fine.

...because an Unknown error occurred. Try saving to disk first then opening the file."

Never seen this error before and am getting it on all torrents, even after a re-boot. I'm using Transmission 1.50+ (7892) and OSX (Leopard) 10.5.6.