Does Joining a Multiplayer Server Automatically Enabled/Disable Mods?

[Dislexeeya]

I have mod "A" and "B" installed and enabled. I have mod "C" installed, but not enabled. I do not have mod "D."

I join a server with mod A, C, and D. It does not have mod B.

What happens when I connect? Does mod "B" automatically get disabled? Does mod "C" automatically get enabled? Does mod "D" automatically get downloaded and enabled?

[Dislexeeya]

Originally posted by Cat Supremacist SM:

It downloads and enables them for you, not sure about disabling them but I have some client-side mods that stay on when I join servers.

Thank you for your prompt and informative response! Now, I just hope someone can chime in on if it automatically disables mods. Sounds like it would be annoying having to manually disable any non-client-side mods...