While i cannot remember any details, this error does seem to be vaguely familiar.. So I installed firefox v64.0.2 running Xvesa on TC-10
starting firefox from the terminal I receive this error when attempting to navigate the filesystem.
tc@box:~$ firefox
Xlib: extension "XInputExtension" missing on display ":0.0".
...
(firefox:11815): Gdk-ERROR **: The program 'firefox' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadValue (integer parameter out of range for operation)'.
(Details: serial 113768 error_code 2 request_code 139 (RENDER) minor_code 34)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the GDK_SYNCHRONIZE environment
variable to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)
ExceptionHandler::GenerateDump cloned child 12314
ExceptionHandler::SendContinueSignalToChild sent continue signal to child
ExceptionHandler::WaitForContinueSignal waiting for continue signal...
Exiting due to channel error.
Exiting due to channel error.
Exiting due to channel error.
Exiting due to channel error.
Trace/breakpoint trap
tc@box:~$
(crashreporter:12315): Gtk-WARNING **: Could not load a pixbuf from /org/gtk/libgtk/theme/Adwaita/assets/check-symbolic.svg.
This may indicate that pixbuf loaders or the mime database could not be found.
Xlib: extension "XInputExtension" missing on display ":0.0".
Xlib: extension "XInputExtension" missing on display ":0.0".
Xlib: extension "XInputExtension" missing on display ":0.0".
Maybe I've not seen this "GDK" error recently as I've been using Xorg for so long, I've reported the error to Mozilla though it looks like the known issue reported earlier in this thread.
Meanwhile navigating with intent to upload might be an issue with Xvesa. Here's a workaround for downloading
Open Firefox and enter " about:preferences " in address bar
then specify your desired location to receive downloads at "Save files to"
Ok, back to firefox v65.0.1
good luck