Comment 15 for bug 1222356

I know this thread is ancient and marked as fixed, but I just ran into the exact same error message on a recently installed Xubuntu 18.04.4, opening Thunderbird (1:68.8.0+build2-0ubuntu0.18.04.2) after resuming from suspend:

Quote from "~/.xsession-errors":

```
(nm-applet:26135): Gtk-WARNING **: 18:53:46.496: Can't set a parent on widget which has a parent

(wrapper-1.0:26197): GLib-CRITICAL **: 18:53:57.168: Source ID 174 was not found when attempting to remove it
Gtk-Message: 18:55:17.424: GtkDialog mapped without a transient parent. This is discouraged.

(exo-open:329): dbind-WARNING **: 18:55:21.445: Couldn't register with accessibility bus: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

(exo-helper-1:331): dbind-WARNING **: 18:55:21.459: Couldn't register with accessibility bus: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
JavaScript error: chrome://coloredfolders/content/coloredfolders.js, line 118: TypeError: elm is null
```

I haven't done anything fancy on this system that I'm aware of, so someone else might also get this warning message on a recent setup?