Package: thunderbird Version: 1:52.4.0-1 Cannot open or download attachments. Error message in console: (thunderbird:23857): Gtk-WARNING **: Attempting to read the recently used resources file at '<home>/.local/share/recently-used.xbel', but the parser failed: Failed to open file “<home>/.local/share/recently-used.xbel”: Permission denied.
Also cannot send mails with attachment. Error message in separate "Send Message Error" window: Sending of the message failed. Unable to open the temporary file <filename>. Check your 'Temporary Directory' setting. Permissions of <home>/.local/share/recently-used.xbel are -rw------- The problem appeared today, or at most a few days ago, following an update Debian buster (testing). Thunderbird itself was _not_ apdated, but a number of files it depends on.