ATTN Firebug Users: You may need to update your plugin!
There have been some recent reports of issues that some Firefox users may be experiencing with the All-New Yahoo! Mail, if they are currently using the Firebug plugin (a popular browser tool for debugging or editing website code).
Fortunately there is already a Firebug update that should remedy the situation. Check out the Firebug website and look for the link to install version 1.1 Beta (it’s just below the big orange button).
Once you are running the latest version of the plugin everything should be fine, but we’ll be keeping a close eye on things anyway.