Where was the drop-down? Maybe it was a feature added by an add-on. Sometimes an add-on will be disabled during an upgrade if it is not compatible with the new version of Firefox. You can check by opening Firefox's '''Add-ons page''' using either: * Ctrl+Shift+a * "3-bar" menu button (or Tools menu) > Add-ons In the left column, click '''Extensions'''. Then scroll down; the disabled extensions appear at the bottom of the list on a gray background. Does anything translation-related appear there? In some cases, an add-on might stop working correctly, but to suggest solutions we would need to know which one it is. Another common issue is if you used the Refresh/Reset feature, then add-ons are removed and you would need to reinstall it again.