Searcher searches hidden links, image urls and text inside the webpage. To Enable searcher click Ctrl + ~ and search for anything you want. You can filter results with many ways:
Full documantation translated from Russian to English with google you can find here
Power-drag is simply cool. Probably I should call it "awesome script"? Pressing your shift key then hover textareas, select boxes, iframes, objects, images or input fields to simply resize them by dragging its lower right corner. Simple, clean and efficient. Double click to restore the original dimensions. You can enable the dragging corner always, or use another modifier key. The script requires shift by default because makes the script less intrusive, and does not cover small elements in the page, while having a smaller performance impact.
Greased Lightbox is a user script that enhances browsing on websites that link to images
Joe Lencioni’s Greased Lightbox is a user script that enhances browsing on websites that link to images such as Google Image Search, Flickr, Wikipedia, MySpace, deviantART, FFFFOUND!, and Blogger/Blogspot blogs.