When using Gmail in Firefox Google Chat works fine but when Gmail is accessed through Tor, the chat doesn’t load. Moreover, it says "Authentication Problem" and request to log in again in a red line on top of Gmail.
However it is possible to keep on using Gmail despite of the annoying notification in red.
I would be thrilled to know as to why the Google chat on the left hand side of Gmail loads when using the Tor proxy 127.0.0.1 PORT 9150 on Firefox but never loads on Tor browser.
Thank you for your response.