"Twitter.com is loading slowly" after updating to Firefox 13.0.1

[Toomas Aas]

Hello!

I'm having this problem on two different computers, one running  
8.3-STABLE and the other running 9.0-STABLE. After updating Firefox  
from 12.0 to 13.0.1, whenever I access twitter.com, I can log in but  
after that a message appears saying that "Twitter.com is loading  
slowly", and the site is practically unusable - clicking on any of the  
links has no effect.

Various support sites say that this may be a problem with Firefox  
extensions or plugins, or some difficult-to-find problem which may be  
worked around by clearing cache and cookies, or trying with a new  
Firefox profile.

For testing, I have disabled all extensions and plugins. I have also  
tried moving my ~/.mozilla directory out of the way so that new empty  
profile is created. None of this has helped. The fact that this is  
happening on two totally different machines is leading me to think  
that maybe this is some peculiarity in a way that Firefox is compiled  
on FreeBSD, so I decided to ask if anyone else is seeing this.

When updating Firefox to 13.0.1, I didn't change any port  
configuration options from what I was using previously:
cat /var/db/ports/firefox/options
# This file is auto-generated by 'make config'.
# Options for firefox-13.0.1,1
_FILE_COMPLETE_OPTIONS_LIST=DBUS PGO DEBUG LOGGING OPTIMIZED_CFLAGS
OPTIONS_FILE_SET+=DBUS
OPTIONS_FILE_UNSET+=PGO
OPTIONS_FILE_UNSET+=DEBUG
OPTIONS_FILE_UNSET+=LOGGING
OPTIONS_FILE_SET+=OPTIMIZED_CFLAGS

-- 
Toomas Aas