I'm still giving this three stars because I love Evernote, and the webclipper function is so useful. But this add-on makes firefox so slow that it's almost unusable for me. I've tested to make sure it was really Evernote causing the problems, and it definitely is. When I disable it, my FF browser runs smoothly. I'm sad to remove it because I use it constantly to clip recipes and resources from the web, but I can't even work on a google doc without freezing and delays while evernote is enabled.