Antimatter15
Evil Meter
FreeDetect when a webapp uses User Agent detection.
WindowsReadability API
FreeCreate sites that embed iframes with Readability.
WindowsYouTube Repeat
FreeRepeat YouTube videos.
Windowsdrag2up
FreeDrag files from Desktop onto any text field to upload and insert a link.
WindowsHide Elements
FreeHide elements using the context menu.
WindowsWave Unread Navigator
FreeGet alerted whenever there are in an open wave.
Windows