Tested in Xubuntu 16.04, Xubuntu 14.04, Lubuntu 16.04, Ubuntu MATE 16.04 (the issue does not occur with the caja-dropbox package in this Ubuntu MATE version) and Ubuntu MATE 14.04. Here's a screenshot with the issue (taken in Xubuntu 16.04): Important: using the instructions below, Dropbox will use a tray (notification area) icon instead of an AppIndicator. It does not occur with the caja-dropbox package available in the official Ubuntu MATE 16.04 repository though (but it does occur in older Ubuntu MATE versions if you've enabled AppIndicators), because it was patched with a fix similar to the one in this article.īelow you'll find a fix / workaround for this issue. The issue occurs with the Dropbox packages in the official Ubuntu repositories (called "nautilus-dropbox", which doesn't depend on Nautilus and can be used to install Dropbox on any desktop environment) as well as the Dropbox package downloaded from its official website. This isn't a new issue though, and it seems to occur starting with Ubuntu 14.04. Recently stumbled on an issue with Dropbox and the Ubuntu flavors that support AppIndicators (except Unity), like Xubuntu and Lubuntu: the Dropbox AppIndicator icon shows up as broken and the menu doesn't work.