Extra caution is recommended when installing recently uploaded/updated scripts (read more)
Be sure you trust any scripts you install
StumbleUpon Thumb Bubbles
Hides website thumbnails and displays them in tooltips.
This script works only in the new layout. Make sure you have thumbnails enabled in Preferences.
Tooltip code copied from StumbleUpon Avatar Bubbles script by Daddy-sk. Thanks!
Before
After
Watch Fun Dance Videos at DanceJam
You could comment on this script if you were logged in.
