Bookmarklets are cool. They're javascript in a bookmark form, and they look like this: javascript:(function(){ //code })(); You can read or modify the current page by referring to ''document''. Here's one that opens a new tab with all image links from a page: javascript:(function(){ /* This regex was adapted from the BrowseImages extension for Firefox. */ var regex= new RegExp('(\\.jpg$|\\.jpg[&;])|(\\.gif$|\\.gif[&;])|(\\.png$|\\.png[&;])|(\\.jpeg$|\\.jpeg[&;])|(\\.bmp$|\\.bmp[&;])|(\\.svg$|\\.svg[&;])|(\\/full\\.php\\?.*ima?ge?=)|(\\/preview\\.php\\?.*ima?ge?=)|(\\/view\\.php\\?.*ima?ge?=)|(\\/view\\.php\\?.*pic=)|(\\/view\\.showImage\\.php)|(album_pic\\.php?pic_id=)|(\\dchan\\.org\\/.*\\/cb-nws\\/)|(\\dchan\\.org\\/.*src\\.cgi)|(attachment\\.php\\?attachmentid=\\d+&d=\\d+)', "i"); var doc = "data:text/html,Images of '"+document.title+"'"; doc += "

Images of "+document.title+"

"; seen = {}; for(var i = 0; i < document.links.length; i++) { link = document.links[i].href; if (link.match(regex) && !seen[link]) { doc += "

\n"; doc += ""+link+"

"; seen[link] = 1; } } doc += "\n"; open(doc); })(); You can install a new bookmarklet from scratch by copying the code in question, creating a new bookmark, and pasting the content into the location field (Firefox will take care of newlines and other issues automatically). You can give them out just by making a link (but you'll have to escape a bunch of stuff, and I never bothered with that).