correction Rated 4 out of 5 stars

I don't know what went wrong here. This is my corrected review. After stumbling upon those bugs on first usage, I went again to the add-on's preferences and restored the default engines and pressed OK first to get sure it's in default state. Then re-opened it and did not try to delete all default engines as my first step. This time I first added my own engines. When I finished, I was able to safely delete the default engines then. However, no matter how often I try to replace the menu's label "Define {word}" with "Lookup {word}", that doesn't work. It would be nice if this could be fixed, because looking up a word in a dictionary is not looking up a definition. Also there are people who don't want English in the context menu, adjusting it to their localization of Firefox.

This review is for a previous version of the add-on (0.9.2). 

Fixed in 0.9.3

The bug you mention has been fixed in 0.9.3, which also adds ff 3.6 support. It was uploaded about a week ago and will probably soon come through the review process...

has some bugs Rated 3 out of 5 stars

Right after installing this, I ran into problems with this add-on. First of all, it didn't let me delete from the list of engines. On a second try, it suddenly let me. Okay. Then I deleted all preconfigured engines from the list, because I want my own ones. I entered my first engine, then tried to alter the label of the popup menu entry from "Define" to "Lookup" and pressed OK. And then I got an error: "Engine Count Mismatch: 1/2". Then I checked how the menu looks so far when marking a word and doing a right-click. And the menu display then showed the next bug: An empty menu entry.

See screenshots of those bugs:

This review is for a previous version of the add-on (0.9.2). 

Rated 1 out of 5 stars

This add-on doesn't let you delete from the list of engines. Why?

This review is for a previous version of the add-on (0.9.2).