Your question was posted with Firefox 13. Is that the version you've been having problems with? You could check/change two settings using Firefox's about:config preferences page.

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the filter box, type or paste spdy and pause while the list is filtered

(3) If network.http.spdy.enabled is set to its default value of true, double-click it to set it to false.

(4) In the filter box, type or paste keep and pause while the list is filtered

(3) If network.http.keep-alive is false, double-click it to reset it to the default value of true.

More generally, when you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.

1. Clear Firefox's Cache

orange Firefox button or Tools menu > Options > Advanced

On the Network mini-tab > Offline Storage : "Clear Now"

2. If needed, delete your google.com cookies as follows (this will log you out)

While viewing a page on the site, right-click and choose View Page Info > Security > "View Cookies"

Then use the Remove button, OK out, and try reloading the page. Does that help?

No v13 was misbehaving yesterday. (Forgot I upgraded)

Will have to test further but your suggestions (THANKS) have ended 2 months of frustrations.

-)