The version of Dropbox (net-misc/dropbox-43.3.47) in portage appears to be out-of-date. The version of Dropbox available for download is now 43.3.50 Dropbox appears to have updated their binary, the latest release as of Feb 26th, 2018 can be found at: See output of command (from https://www.dropbox.com/install-linux): wget -O - "https://www.dropbox.com/download?plat=lnx.x86_64" | tar xzf - https://clientupdates.dropboxstatic.com/dbx-releng/client/dropbox-lnx.x86_64-43.4.50.tar.gz Thanks.
version 45.3.88 is in the tree now