Firefox Portable

I am using since several weeks pFF, which is loaded on a USB-drive, and I am encountering some problems with it. On some PC (regardless of operating system Win2000 or WinXP) when I start the programm the extentions are nor loading. Checking the extention menue it says that these will be installed when I will restart pFF. On other PC the extensions work perfectly well. Does anyone have an explanation for this behaviour?? What can I do (check, change) when the extensions fail to load???
I appreciate any help very much.

This has probably already been asked/addressed (I couldn't find anything in my research), but does PFF support multiple profiles using the Profile Manager?

Hello,
My work often leaves me with plenty of free time, but no net connection.

I'd like to read the net at work. Currently I sometimes open a bunch of websites and save them to my USB-iPod, then open them at work.

If there is a really easy way of configuring an offline reader I'd love it - I have to admit I only just read about portable-firefox so I hadn't thought too much about it till now.

Any thoughts are appreciated,
THANKS
Greg
ps. I use a Mac... I guess that doesn't make a difference? I can setup a PC easy enough though.

I keep getting prompted to update my copy of FF. Can i? or will this effect the functionality of PFF?

When ever I load Portable Firefox with ANY theme, or even no theme a red ^ appears under the status bar along with a huge space(about 15-20% of the screen) I used to have portable firefox, and it worked fine. I tried deleting the profile, and reloading it. I also reinstalled. Is this system spacific? How do I fix this?

I like to use my bookmarks.html as my home page, but everytime I use a computer with a different configuration of drives, the USB device letter changes.

What relative path can I use in Tools/Options/General/Location(s): to make my "file:///e:/PApps/PortableFirefox/profile/bookmarks.html" truly portable?

Is there anyway to force the flash plugin to display the animations in a larger format? Perhaps this is a problem with regular firefox also but I am only using PFF so I thought it best to ask here. I use some flash animations to show my class information and I would like to do it using PFF but it displays animations at too small a resolution even though I am projecting the image onto a large screen. I also would like to get some colleagues to switch to PFF but I think the flash glitch would be a deal killer. Here's a site so see what I am talking about: http://addictinggames.com/logicproblems.html. View the site in PFF and then in Internet Explorer and you should see a big difference. At least on my machine that is the case.

Is it possible to move the profile directory for PFF? I tried running PFF with the -p switch and nothing happened.

This is probably a very basic question, but I don't know anything about programming, etc.... so,

can anyone tell me how to combine two bookmark files. I used to use one copy of Firefox on my work computer and one on my home computer, but now I'd like to use just one copy on a Jumpdrive. I've already moved all the work bookmarks to it, and now I need to move the home bookmarks.

Thanks,
MJC

Ok, I am probably missing something fairly basic here.
I am trying to make some edits to userChrome.css for my copy of PortableFirefox. I've tried placing the edited file in:
PortableFirefox\profile
PortableFirefox\profile\chrome
PortableFirefox\firefox\chrome
PortableFirefox\firefox\defaults\profile (didn't think this would work but tried it anyway)
PortableFirefox\firefox\defaults\profile\chrome (didn't think this would work but tried it anyway)

I searched the forums and did not find anything about anyone else having trouble with this.

Any suggestions? Here is the code I am trying to put in my userChrome.css: