UBB forum doesn't work completely after profile restore

My system is well-protected and backed up, so I still use Firefox 1.0.

Every few months, either due to a crash or for reasons I can't figure
out, Firefox starts up and refuses to load my profile. Usually I can
generate a new one, and copy the old folder into the new, and everything
works fine. Sometimes my profile folder gets erased, but I back up once
a week, so it's pretty quick to grab the latest CD and restore a working
profile.

This happened last week. Firefox jettisoned my profile after it crashed
on a java-heavy page. I restored it, reinstalled my extensions (the
biggest nuisance about restoring) and everything works as before, with
one exception.

I frequent a discussion board that is set up with UBBcode. It worked
great until the last crash. Now the preview function doesn't work.
Formerly, when I clicked "preview", the text of my post-in-progress
appeared as a popup window, showing how the post would look once it
appeared on the site. Now, when I click "preview", a new tab is
spawned, and it stays blank. I get no preview at all.

I've tried specifically allowing popups from that site, making sure no
ad protection was running, and so on. Nothing has helped. The site at
which the problem manifests (and oddly, it's the only forum site that
malfunctions for me) is animationnation.com.

Any ideas?

 

Okay, I found a fix online finally. It works. In case anyone else
bumps into the same problem:
should be opened in a new window. To change this behavior so it doesn't
divert new windows that are spawned by JavaScript, add the following
code to your user.js file:

/* Force New Windows Restrictions
0: Default - Divert *all* new windows to current tab/window or new tab
1: Don't divert *any* windows spawned by JS
2: Don't divert JS windows that include size/placement/toolbar info */
user_pref("browser.link.open_newwindow.restriction", 2);