content-editable-js-snippet
JavaScript snippet that lets you edit webpages
Here it is
a=document.getElementsByTagName("*");for(i=0;i<a.length;i++){a[i].setAttribute("contenteditable","true");};href=document.getElementsByTagName("a");for(i=0;i<href.length;i++){href[i].removeAttribute("href");}
Usage
Type javascript: into your menu bar, then paste the snippet, and press enter.
You can also make it into a bookmark (if you do, remember to put the javascript: at the start)