gfretwell wrote:

It seems javascripts are what is slowing down/locking up my browser.
I get the gray box Script is broke continue debug or exit (or words to
that effect). FF says most of this stuff is no longer supported.
Is there a work around?

Firefox 52 ESR is the last version available for Windows XP.

Are you using adblockers, script blockers, or some other content
blockers in Firefox? Those work by breaking web pages. Resources the
page expects to access are blocked, and that can include script sources.
Broken scripts can misbehave simply because the programmer often does
not plan for scripts to get broken, like a script calling a function
defined by another script but your blocker prevents getting that other
script, so the caller script errors or misbehaves.

Does Firefox have the same problem when you load it in its safe mode
(which disables all extensions)?

Back on Aug 12 you reported a similar problem which seemed caused by
Javascript. Did you try Firefox in its safe mode back then?

You said that all extensions were disabled. Well, maybe all. "etc"
doesn't say which extensions you installed into Firefox. Even if ALL
extensions are disabled, you should still try Firefox's safe mode.

Disabling extensions does not remove the changes they make in the
settings of Firefox. Those changes remain effective when the extensions
are disabled or even in safe mode. Have you tried creating a new
Firefox profile and using that one? A new profile would not yet have
had any extensions installed in it hence no settings were changed due to
the installation or use of any extensions. I also mentioned back then
using a new profile but you didn't try it. If safe mode doesn't help,
how about trying a new Firefox profile this time?