No syncing or plugins for Firefox to be seen = me not caring about paying you that much.
Actually, we do sync your bookmarks across every device you use. The Firefox plugin is available as both an addon from the Addons Center and XPI file for direct install. Did you have any problems installing the plugin, or did you just have trouble finding the page that links to it?
Just had trouble seeing the links to the add-on center. Excuse me then, I stand corrected.