Does require tune-up Rated 3 out of 5 stars

Issue #1: Select and right-click a word > then QuickWiki > Quick lookup in Wikipedia. The Dialogue appears saying "Looking up Semantic Web in Wikipedia...". I waited over a minute; nothing happened. If I clicked the word Semantic Web it then loads the page. This happens regardless which word I select.

Issue #2
Upon initial install then restarting when right-clicking a word the icons/word for the language was not visible. The menu just looked like there was duplicate entries.

Issue #3:
Icons for toolbar there was a space for one but without image. However, there is two icons that perform the same function. After restarting the icon appeared. One has no verbiage attached the other says QuickWiki

The mere mention of "eliminate the small popup window" is absurd. Taking that feature away negates the title QuickWiki.

This is exactly the add-on I was looking for. When I am researching I don't need the distraction of being taken away from the page I am working on. Having the quick pop up allows me to get the info I need and move on.

This review is for a previous version of the add-on (1.1.3.1-signed.1-signed). 

New version added

Thanks for the detailed info. The plugin is udpated to make it work with the latest versions of Firefox. give it a try and give feedback, if any.