Chrome - When downloading a file that “appears malicious” Chrome asks if you want to keep or discard it.
/via Tee Jay Green
Chrome - After clicking on an active download, the status changes to “Opening in [time remaining]”.
/via John MacAdam
Gnome - on the icon of .txt files, you can see a summary of first three rows for particular file.
/via Drazen Peric
Socialite - Asks you if you want to move it to Applications if you start it from Downloads.
New Scientist - Simple optical illusions can make it seem like the progress bars on your file downloads are moving faster than they actually are.