Profile Manager in icedove doesn't see imported profiles, or any profile, for that matter, unless I delete profiles.ini

My laptop's screen is going belly-up, and so I'm trying to transfer my Thunderbird emails into icedove on a Trisquel 7 installation.

I installed icedove in the Trisquel 7 desktop, but I didn't activate it. After rebooting, a xxxx.default profile and a profiles.ini file appeared.

Then I downloaded my Thunderbird yyyy.default profile and profiles.ini file into the .icedove directory. After that, syntax and muddled directions have taken over.

I can get icedove to attempt to start into ProfileManager with "icedove -ProfileManager" or "icedove -profilemanager" but it doesn't see my xxxx.default or yyyy.default profiles, so there is nothing from which to choose.

Terminal senses something wrong:

> (process:4147): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
> (icedove:4147): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::sm-connect after class was initialised
> (icedove:4147): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::show-crash-dialog after class was initialised
> (icedove:4147): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::display after class was initialised
> (icedove:4147): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::default-icon after class was initialised

Then, when I just acquiesce by choosing "default" (the only profile presented by ProfileManager) ProfileManager says:

"Profile Missing, Your Icedove profile cannot be loaded. It may be missing or inaccessible."

Then I renamed "profiles.ini" to something nonsensical, whereupon the ProfileManager went into full swing and I was able to access my old thunderbird profile under icedove.

But Terminal is still hysterical:

george:~/.icedove$ icedove -profilemanager

> (process:4320): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
> (icedove:4320): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::sm-connect after class was initialised
> (icedove:4320): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::show-crash-dialog after class was initialised
> (icedove:4320): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::display after class was initialised
> (icedove:4320): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::default-icon after class was initialised
> (process:4320): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
> (icedove:4320): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::sm-connect after class was initialised
> (icedove:4320): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::show-crash-dialog after class was initialised
> (icedove:4320): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::display after class was initialised
> (icedove:4320): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::default-icon after class was initialised
> 1426511921808 addons.xpi WARN Unable to activate the default theme
...
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f99616676d0' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f99616676d0' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f996226a0a0' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f996226a0a0' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f996226a0a0' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f996226a0f0' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f99614dd590' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f99614dd590' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f99614dba80' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f99614dba80' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f99614dba80' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f99622695e0' of type 'MaiAtkType3'
> (icedove:4320): GLib-GObject-WARNING **: /build/buildd/glib2.0-2.40.2/./gobject/gsignal.c:3408: signal name 'selection_changed' is invalid for instance '0x7f99620df000' of type 'MaiAtkType3'

But now my icedove email app works in Trisquel 7 just like thunderbird did in the laptop.

Amazing ... but navigating the syntax and workarounds is quite trying.