Firefox 23 expands its social functionality by integrating a share button into the Firefox toolbar.
The new share button lets users post an interesting article to friends and family via profile, private message, or e-mail without having to leave the page. This is already complemented by a slew of recent feature add-ons in Firefox that include the ability to view your feeds, check status updates and activity, and chat with friends directly within the sidebar.
Developers are also given a few new toys to play with, notably the Network Monitor. The Network Monitor, a convenient, historical view of network activity on your site, has received a significant face lift since its original Web Console days.
Mozilla has also enabled Mixed Content blocking by default, which prevents MITM (man-in-the-middle) attacks on secure HTTP pages by giving users more control over whether to allow protection or override the protection. As you browse, users will notice a shield icon that indicates that Mixed Content protection is enabled.
As always, head on over to the Download button to upgrade your Firefox client.