I just downloaded last night’s Mozilla build to take a look at the cleaner context menus mentioned on Blogzilla. What should I also find but support for email return receipts. That’s pretty cool, even though I don’t know that I’ll use it. This is not a well-supported feature.

I also see that they’ve added a “Security” button to the toolbar, which lets you digitally sign a message. Pity that Mozilla uses S/MIME and not PGP. I wonder if there’s a PGP plugin for Mozilla yet.