So I thought... let's give it a try, and so far... it works fine for me. I've now set up Weave on my Linux Laptop and Linux workstation at home. The upcoming week I will set up weave for my Linux workstation at work and on my Portable Apps Firefox on ahum Windows Vista workstation.
Mozilla Labs Weave
In one of the last Linux Magazine issues, there was an article with the title "Untangling the Web with Mozilla Weave". I really recognized the issue of having several Firefox instances with their own bookmarks/tabs/et cetera.