It doesn't work.
Firefox should stop recommending this shit.

No longer working. Every word comes back without any definition.

recently this addon has stopped working. It is showing no definition found on every word I tried. Please report it as not working

it just stopped working lately... lame, because it worked pretty well while it did work! awesome concept but. just doesnt work. it only says "no definition found" now

This extension has not worked in years. I see a "Sorry. No definition found" error message no matter what word I choose. I am not sure why Firefox is promoting this garbage.

Bummer, it stopped working a while ago so I thought I'd wait to see if there was fix or something, but based on the other reviews it seems this project has been abandoned.

It was a great extension, but all good things...

It stopped working. Windows 10, Firefox 134.0.2 (64-bit)

The extension has stopped working for some time now. When double-clicking a word, you always get "Sorry No definition found."

Would rate this zero stars if i could. Every word I've highlighted shows that no definition exists.

It functions as intended, but it is missing the definitions of so many 'higher-level' English words that it's almost useless for me. For example, no definition found for a word like "serendipitous" - what's the point if this extension can't define the higher-level vocabulary that I actually need defined?

The extension does not work. It returns a "no definition found" message with every query.

This is a great extension when it is working. Hope it gets fixed soon!

This Extension has been beneficial to me. Searching for meanings of words whenever I read articles online has become very simple, but it is not working now. I hope the developer fixes the bug ASAP.

Very useful, but for the last days it has stopped working, showing the "Sorry, No definition found." message.

Update
It works again! :)))

Ceased to work.

Doesn't work. Keep saying "Error"

90% of the time this extension finds no definition for the words unfortunately

Broken extension. Don't waste your time as of now.

Loved this extension when it worked. It has stoped working now - always "no definition found"

It's not working anymore. Please fix.