i got this yesterday and it looks cool but it never connect properly at the start so i cant use it
the connection just times out anyone else having this problem

I've been trying another FF bookmarks synchronisation extension called Foxmarks.
http://www.foxcloud.com/wiki/Main_Page
Their websit gave me a feeling they were a start-up that might one day go commercial. Now they've been steamrolled.

Having a third party store one's bookmarks generates one or two privacy concerns. Especially when the third party is the grand daddy of information gobblers. What are they doing with all that data?

Want to try some more extensions? I like PDF Download
https://addons.mozilla.org/firefox/636/
and Search Engine Ordering
https://addons.mozilla.org/firefox/2164/

What no cross browser support?

In all seriousness though it looks like a great extension though sharing or easy access to my favorites across machines is why I have raved about http://del.icio.us and the 'community' involved in finding the best of the best information and sharing that makes searching for something far more powerful than Google search by utilising a 'wisdom of the crowd' mentality with the downside that if the 'crowd gets it wrong' then we have a fair amount of dis-information abound (As far as I know I have not been spreading too much dis-information)

I am not sure beyond a second machine that I really want to save Firefox session states and cookies so to speak, as I would want to clear that 'personal' information from the machine before leaving it for 'unknowns/others' to use that computer and getting automatically signed into certain web sites because my Firefox cookies and other 'stuff' is just hanging about on that PC.

If you have a Microsoft Passport or as they are now known Windows LiveID you can try out Windows Live Favorites which works with Firefox and Internet Explorer by signing in with your LiveID and your bookmarks are there complete with tags and instant searching utilising all Web 2.0 Goodness.

There are no toolbars to install or extensions for Firefox just a web page address where you sign-in at http://favorites.live.com/

Live Favorites features include sharing your favorites with your friends, family or the public based on your permissions associated with your MSN Spaces, MSN 7.5 Messenger or Windows Live Messenger 8 Beta (Direct Download), using contact profiles either from linking to you in Messenger or your blog at MSN spaces.

WLM8Beta in the very near future will also allow you to inter-exchange your Yahoo contacts in the one IM application (Yes Trillian, I know and there is Meebo), sending offline messages to contacts that see your message next time they sign-on, VoIP integration (soon), Shared contact folders for dragging and dropping the family snap on top of a contact in Messenger and next time they log-in to Messenger they have the photograph already downloading into their shared folder that stays synchronized between the two of you. And of course your Live Favorites will be available in your Messenger Window to drag and drop to contacts whilst you are in chat.

I have mixed feelings about the new Google Browser Sync. The premise is keeping all your Firefox settings synchronized across every computer you use, including bookmarks, history, persistent cookies, and saved passwords. This is good in theory. I know there are plenty of times when I find something on one computer and then have to remember which computer in order to find the resource again. My concern comes from the implementation. In order to keep passwords, bookmarks and everything else in sync, the information is uploaded and stored on a Google server using the same Google account used for GMail, Google Talk and all the various other Google applications. Storing passwords and browser history on Google's servers might be completely innocuous - a convenient repository of information. On the other hand all that information is definitively identifying in detail about where you go and what you do online. Google explicitly says in the terms of use, "Google may access, preserve, and disclose information regarding your use of the services if required to do so by law or under other conditions set forth in the Google Privacy Policy." This gets scary if you ever end up getting divorced and your future-ex subpoenas your Internet history as some sort of proving ground for a relationship turned sour, or more importantly if the government decides they want to investigate a large block of Google users for patterns of behavior.

Keeping things in perspective, Google lets you choose what is or isn't synchronized using advanced configuration. Google offers encryption for all this data, but fails in letting us know whether they hold a master key to decrypt it on their end. From my view, I'm inclined to use something like this to store my tab groupings to easily open them on any computer, bookmarks for the convenience of accessing them, encrypt both, and pass on trusting Google to store passwords, history, and cookies on their server. Bottom line, if you opt to use Google Browser Sync, I recommend caution.