Noté 5 sur 5 étoiles

I concur there is something amiss with the latest update (downgrading to 0.97.19 works just fine) : for me (using FF 27.0.1) the dialog box just won't pop up thus preventing from saving any file.
Otherwise, a must-have add-on :)

Edit : still not working after removing then downloading 0.97.21c. I guess the copy process is OK since I can paste into any viewer, but the save feature, whatever the mode (selection, full page or visible portion) won't prompt the save box (FF 27.0.1 / W7x64)

Cette critique est pour une version précédente du module (0.97.20c.1-signed). 

please update to new version
https://addons.mozilla.org/firefox/addon/screengrab-fix-version/versions/