There seems to be a problem with some https pages and FF3. I've seen problems trying to negotiate payment gateways, changing nameservers, doing secondary logins, etc.

Had a problem last night and again today, 5 tries to get a domain registered .. wouldn't work. Switched to IE 7 and it worked right away. This thing seems to happen when bandwidth is a little marginal. Maybe it's how FF does a https request?

There seems to be a problem with some https pages and FF3. I've seen problems trying to negotiate payment gateways, changing nameservers, doing secondary logins, etc.

Had a problem last night and again today, 5 tries to get a domain registered .. wouldn't work. Switched to IE 7 and it worked right away. This thing seems to happen when bandwidth is a little marginal. Maybe it's how FF does a https request?

I don't think so as I have no problem using FF3 with any secure website. Maybe it's something in your FF3 local cache. I would suggest to clear your private data (especially your cache, offline data and if it doesn't solve the problem, clear also your cookies and authenticated sessions).