Hello Avinash Sonawane, I just tried to help triaging this crash. Unfortunately I could not reproduce this crash in a minimal stretch VM.
If you can still reproduce the crash, maybe you could
install the following debug information packages before,
and repeat the 'midori -g' step:
midori-dbgsym libwebkitgtk-1.0-0-dbgsym
They are in a separate repository described here:
https://wiki.debian.org/HowToGetABacktrace#Installing_the_debugging_symbols
Kind regards,
Bernhard
