There are a couple of hidden settings you could look at: (1) In a new tab, type or paste '''about:config''' in the address bar and press Enter/Return. Click the button accepting the risk. ''More info on about:config:'' [[Configuration Editor for Firefox]]. ''The moderators would like us to remind you that changes made through this back door aren't fully supported and aren't guaranteed to continue working in the future.'' (2) In the search box in the page, type or paste '''browser.translations''' and pause while the list is filtered ''To allow Firefox to display the Translation button in the address bar, but turn off the drop-down panel:'' (3) Double-click the '''browser.translations.automaticallyPopup''' preference to switch the value from true to false -- this will allow you to experiment with the feature when it could be useful, and watch its evolution ''To completely disable the translation feature (for example, if you have an add-on you prefer):'' (4) Double-click the '''browser.translations.enabled''' preference to switch the value from true to false