Highly recommend you try out https://chrome.google.com/webstore/detail/imagus/immpkjjlgappgfkkfieppnmlhakdmaab as I've decided to discontinue support for HoverFree.
Fork of hoverzoom.net -- this Chrome extension will show an image if you hover its thumbnail or a link.
Read why here: https://gist.github.com/ralph-tice/5087704 or see http://www.reddit.com/r/technology/comments/19oy0s/hoverzoom_has_gone_evil_tracking_browsing_history/ for discussion.
HoverFree will be free to use and help people preview a linked image.
HoverFree will never inject advertising, referral links, adware, spyware, etc.
HoverFree will never track or record browsing activity.
Easiest method is Chrome Web Store: https://chrome.google.com/webstore/detail/hover-free/hcmnnggnaofmhflgomfjfbndngdoogkj
For manual installation, simplest method is:
git archive --format zip --output ~/hoverfree.zip master
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