Firefox Portable

I have been a portable firefox user for quite some time now, and Ive experienced this for the third time now.

I use both Windows XP and Mac computers and a USB drive.

I want to be able to use the same bookmarks for both computers. How do I share my bookmarks so that I don't have to have two sets of Firefox bookmarks.

Thanks

Windows was being Windows again and wouldn't unmount my USB, so I had to just pull it out when I was in a hurry. Now I have two corrupted files that cause a looping error message whenever I start up Firefox and whenever I exit. I've tried reinstalling the application, but with no avail. Does anyone have a suggestion?
Thanks in advance

I have downloaded and installed the flash extension and it works fine on other flash sites but youtube fails to recognize it. Oddly enough it runs the video on the front page okay (the one at the top right) but when i try to view any other video it claims flash is not installed (it is, i've checked and double checked). Anyone had similar problems and knows how to fix it?

please help. When I play videos on stage6 it says file cannot be downloaded and when I exit the tab, a popup appears saying that Divx Web Player had an Illegal Operation and then firefox just goes crazy.

The plugin works fine in Ie7 and standard firefox. Is it a problem in Firefox portable or is it just me?

help pls. Its really annoying that I have to use another browser to view videos

I have java installed locally within my PC however both javascript and java applets do not work. This happens by the by the scripted/applet section just not appearing at all. What is wrong exactly and what can i do to fix it?

On a last note all your portable programs are great and hope that it will continue for the unforeseeable future

I just bought a 4gb drive and tried to move my FFP folder from t=my old one to the new one and no of my settings followed,what did I do wrong and how can I fix this....

Have anyone used this extension with Portable Firefox?
I got it and was playing with it. Looks like very useful utility.

However, one of the sites I'd like to keep saving via Scrapbook is in the form of forum/blog with entries often added and at times deleted. How would I go about syncing few different (saved) copies of the site to avoid duplicates, yet not to miss any records?

I have been trying to use the player from Move Networks that Fox uses for playing some of its shows on websites (e.g., http://myspace.com/24). Even when using Firefox Portable it installs the software and caches the files it needs in the logged in user's Application Data directory. (I am in a location with roaming profiles.) I would like to have the plug-in use a directory on my USB flash drive to cache the files because space in my user account on the network is severely limited. Is there a way to make this work?

The internal pop-up blockers help, but newer ons, or something keeps getting past it by opening the ad in a new window. Is there anything to stop a new window from opening unless if explicitly tell it to? Thanks.