I use the FEBE extension to ‘clone’ my Firefox setup whenever I get a new system. Having installed Ubuntu Lucid I needed my firefox setup on it. Having backed up off one, I restored to the new. This was easier than usual as the extension now has the ability to create a new profile to restore to.
However I encountered a problem I had seen previously in that the bookmarks toolbar disappeared. The bookmarks are there but no toolbar. Googled to no avail but did find something that gave me an idea. I simply right clicked on the toolbar, select customise, then ‘restore default set’. Bingo – toolbar appears!