markthomas3148 said

I was on version 63.ob14 and restarted Firefox after a force quit of the app due to slowness - I received two warnings - one saying that Firefox was already open and I couldn't open another - the other warning saying that there was an untrusted - not sending a code certificate - and giving two options... 1. not require all connections to provide a certificate or 2. Deny all connections I chose the latter and now Firefow will load pages but not connect to the Internet

Hi markthomas3148, have you tried shutting down and restarting your Mac since this problem began? That could help work around locked files or some other glitches.

Next, what do you mean by "load pages but not connect to the Internet"? Does Firefox seem to be working "offline" with cached pages and not updating them? There is a command for "Work Offline" on either the File menu or the Firefox menu. You could check whether that is enabled.

And that message you described, it doesn't sound like a Firefox dialog. Could it be from your security/firewall software?

Hi thanks for your response

page architecture would load but not complete to a resolved page

it was definitely a firefox warning not firewall

restarted FFox - no good

restarted computer - no good

downloaded latest version of browser and it now works

thanks for your help and input - appreciated