Aardvark wins Rated 2 out of 5 stars

Nothing new compared to Aardvark.
Aardvark - not sure about the add-on, but the bookmarklet still works for me in Fx 8.0, and works better than HTW (I do have a test case proving that).

This review is for a previous version of the add-on (1.1.4.1-signed). 

Be safe. Report Issues.

Add your Test case as a comment to the latest post on the support blog, as that’s the only way I can address your issue ;-)

Note that I have fixed two issues that the Firefox team brought to my attention, re the original aardvark code, as the security rules are now stricter. So you really are better off running an add-on that is being actively developed.