this post was submitted on 17 Aug 2023
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Steps I took to debug was to open it from the terminal with --safe-mode
thunderbird --safe-mode ✔ Gtk-Message: 21:45:33.720: Failed to load module "appmenu-gtk-module" [ImapModuleLoader] Using nsImapService.cpp [Parent 92350, Main Thread] WARNING: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): Gdk-CRITICAL **: 21:45:33.903: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed [Parent 92350, Main Thread] WARNING: g_object_unref: assertion 'G_IS_OBJECT (object)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): GLib-GObject-CRITICAL **: 21:45:33.903: g_object_unref: assertion 'G_IS_OBJECT (object)' failed [Parent 92350, Main Thread] WARNING: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): Gdk-CRITICAL **: 21:45:33.903: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed [Parent 92350, Main Thread] WARNING: g_object_unref: assertion 'G_IS_OBJECT (object)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): GLib-GObject-CRITICAL **: 21:45:33.903: g_object_unref: assertion 'G_IS_OBJECT (object)' failed [Parent 92350, Main Thread] WARNING: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): Gdk-CRITICAL **: 21:45:34.032: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed [Parent 92350, Main Thread] WARNING: g_object_unref: assertion 'G_IS_OBJECT (object)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): GLib-GObject-CRITICAL **: 21:45:34.032: g_object_unref: assertion 'G_IS_OBJECT (object)' failed [Parent 92350, Main Thread] WARNING: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): Gdk-CRITICAL **: 21:45:34.033: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed [Parent 92350, Main Thread] WARNING: g_object_unref: assertion 'G_IS_OBJECT (object)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): GLib-GObject-CRITICAL **: 21:45:34.033: g_object_unref: assertion 'G_IS_OBJECT (object)' failed console.warn: services.settings: Failed to load last_modified.json: TypeError: NetworkError when attempting to fetch resource. [Parent 92350, Main Thread] WARNING: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): Gdk-CRITICAL **: 21:45:41.115: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed [Parent 92350, Main Thread] WARNING: g_object_unref: assertion 'G_IS_OBJECT (object)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): GLib-GObject-CRITICAL **: 21:45:41.115: g_object_unref: assertion 'G_IS_OBJECT (object)' failed [Parent 92350, Main Thread] WARNING: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): Gdk-CRITICAL **: 21:45:41.115: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed [Parent 92350, Main Thread] WARNING: g_object_unref: assertion 'G_IS_OBJECT (object)' failed: 'glib warning', file /usr/src/debug/thunderbird/thunderbird-115.1.0/toolkit/xre/nsSigHandlers.cpp:167
(thunderbird:92350): GLib-GObject-CRITICAL **: 21:45:41.115: g_object_unref: assertion 'G_IS_OBJECT (object)' failed console.debug: "Found 0 public keys and 0 secret keys (0 protected, 0 unprotected)" console.debug: "Trying to load /usr/lib/thunderbird/libotr.so" console.debug: "Trying to load libotr.so from system's standard library locations" console.debug: "Trying to load libotr.so.5 from system's standard library locations" console.debug: "Trying to load libotr.so from system's standard library locations" console.log: (new Error("Cannot load required OTR library", "resource:///modules/OTRLib.sys.mjs", 110)) Exiting due to channel error. zsh: segmentation fault (core dumped) thunderbird --safe-mode
I know it looks like a lot is going wrong but the gdk-critical errors show up and the program doesnt crash. I can open emails normally.
As soon as I open this account verification email from Mega upload thunderbird crashes.
Below screenshot is from gmail because I obviously cant open it in thunderbird. It seems like a normal email to me. I was able to open the next "welcome to mega" email that Megaupload sent me with no issue.
I would start by pasting important parts of the error ("Cannot load required OTR library") into a search engine and seeing if someone else has the same issue
Since the error contains a few file paths, I would then use utilities specific to my distribution to find what packages they belong to. I would remove the files (if they exist), re-install those packages and see if files are begin installed to those locations
I would then see if there's a crashlog in dmesg and repeat the above steps for any libraries mentioned in the log
I would then attempt running Thunderbird with a debugger like GDB to try to find the function that causes the crash
I would then try forwarding the email to myself, removing half of the HTML content and seeing if it crashes. If it does, the issue could be in the other half, so I remove that half instead and see if it crashes again. If it doesn't, I know it's an issue with the HTML, so I do a rough binary search to narrow the email down to the offending part
If it's not an issue with the HTML, I would check the email header and compare it with headers from other emails to see if something stands out. I would first have to do some research on what's inside an email header, though