I've been using a cool new Firefox add-on, and I thought some of you might appreciate it as well. It's called LiveJournal Addons. It monitors your friends page and message center, notifies you of upcoming birthdays, and does a bunch more things that I haven't figured out yet. Mostly I like it because it can puts an icon at the bottom of my window when there's a new post on my flist, and I can mouse over it to see a list of posters and subject lines.