Could be very useful to quickly check up on pages. Rated 5 out of 5 stars
I just installed it, but I'm really liking it so far.
I uninstalled 'tab preview' because this does so much more - and no need to select 'tab preview' option in TabMixPlus, which wasn't working for me anyways..
However, I think it would be more useful with a couple suggestions:
1) Have an option to disable previewing when using the scroll wheel on the tab bar.. Make it so, after you start scrolling, that you have to move the mouse off the tab bar and back onto a tab to get a preview again.
2) Have an option to allow mouse-button 'back' and 'forward' buttons events/clicks to pass though to the preview window.
Otherwise nice add-on! I may end up finding it very useful to quickly check up on something... Time will tell how useful it will be.