Rated 5 out of 5 stars

Still works fine, actually.
Just install the add-on compatibility reporter to enable an "install anyway" option from this page: https://addons.mozilla.org/en-US/firefox/addon/add-on-compatibility-reporter/

Rated 5 out of 5 stars

Excellent. Period.
And even extremely open to suggestions/bug reports (took around 24 from my 10-point-mail to a new version correcting most/all issues).
Only drawback at present: 'experimental' tag doesn't allow automatic updates via Firefox.

This review is for a previous version of the add-on (0.2.4).