Rated 4 out of 5 stars
Great extension that makes it very easy to recover accidentally closed tabs. The only improvement I'd like to have is the ability to reopen closed windows too, but it's not that important.
I'm a little confused why the 3.7.3 version with the new, correctly sized icon and better support for Firefox 4 that was released almost four months ago is still experimental and not marked compatible with Firefox 5 while the older version gets its compatibility bumped automatically. 3.7.3 works well in Firefox 5 with compatibility check disabled.