It turns out I’m not the only one who finds Snap.com’s javascript website-preview popups incredibly annoying, useless and distracting. They provide a global-disable option, but it stores your preferences in a cookie - hardly an ideal solution; cookies aren’t exactly permanent. Another way to disable Snap would be via greasemonkey script, but I find this answer to be the simplest of all. If you have Adblock installed, simply add this to your filters:

http://spa.snap.com/snap_preview_anywhere.js

Not only will snap.com now be permanently disabled, but your pages will also be 1.44k lighter. Does anyone really think this script is helpful?!

Update: I’ve discovered another culprit; Websnapr.com. To disable websnapr preview bubbles you should also blacklist

previewbubble.js
websnapr.js
websnapr.css
bloggerbubble.js

Click here to download the filterset to import into Adblock