Naya Rivera FIRED From 'Glee' -- Jane Lynch Confirms ... Or Doesn't

"Glee" star Jane Lynch either knows Naya Rivera was fired from "Glee," but didn't know everyone else knew ... or didn't know Naya Rivera was fired from "Glee" and just heard the rumor for the first time ... or knows Naya Rivera was NOT fired from "Glee," but hadn't heard the rumor that she was ...

Rumors have been swirling all week, ever since TMZ first reported that Naya and Lea Michele got into a HUGE argument on the set of the show.

We tried to ask Lynch about it yesterday ... but we can't tell what she's saying in the video.