Firefox 2.0.0.14 Problem -- Help!

(note: I tried to post this to the Firefox Forums at Mozillazine, but I had to register, so I registered, and logged in, and then typed this up, and then clicked the post button, and it asked me to login again, and I did, and it told me my account was inactive, and I should bugger off, sooooooo maybe you guys can help me instead.)

Sometimes, I'll just stop being able to browse. My internet is fine, as is evidenced by EVERY OTHER PROGRAM working (IM clients, FTP, etc), but Firefox will just keep loading a page forever.  When I close Firefox (using the red X) and re-open it (using the link in my toolbar), the chrome appears (the outside frame, the menubar, the minimize/maximize/close buttons), but nothing else.  Clicking the X to close it several times pops up a Vista "This program has stopped responding" window. The Mozilla Error Reporting Agent never appears.

After telling Vista to close Firefox, and then trying to open it again, it works fine, and will browse normally.

At first, I thought it was being caused by putting the computer to sleep (as that was the only time it would present); however today it has done it several times without warning, and without being put to sleep.

As I said, this has only been happening since 2.0.0.14.  Additionally, I'm not having this problem on my XP SP2 installation at home, only on my Vista Ultimate laptop.

The add-ons I have installed are as follows:
4chan 0.4.5.9
Adblock Plus 0.7.5.4
Better Flickr 0.2.1
BoxedUp 1.22
Canadian English Dictionary 1.1.0
Download Statusbar 0.9.6.1
East Asian Translator 1.1.2
Japanese-English Dictionary for rikaichan 1.06
Names Dictionary for rikaichan 1.05
Personas for Firefox 0.9.2
Rikaichan 1.01
Stylish 0.5.6
Talkback 2.0.0.11

I'd appreciate any thing suggested.  Thanks :)