Chat in Telegram just like you where in your smartphone. Very similar to WhatsApp but Telegram Made.

Adjust window in your favorite position. It will be saved for future use.
Otherwise make it a Sidebar Window (Option On/Off).

You are accessing directly to Telegram™ platform for maximum security, no need to share credentials to third party applications.

Auto-Start when browser starts(configure as On/Off).
Back/forward buttons for fast switching navigation.
Refresh button to force self-actualization of the page.
Configurations in a Settings section.