If needed you can run SSH commands followed by immediately logging out of the remote system.
A new Gmail labs add-on adds auto-complete to mail search, letting you quickly look up contacts or search operators from the main search bar.
The Export Friends to CSV Facebook application creates a .csv file you can import to your Gmail and Outlook contacts, but the data certainly doesn't travel well.
The problem with some Web sites showing block-A characters instead of text in Safari 5.1 is likely rooted in the sandboxing technology in the latest WebKit update. Here are some methods for addressing the issue.
Another Crave expert chimes in with an end-of-year wish list.