The north-east club picked up their first points of 2013 thanks to Curtis Main's 81st-minute header, condemning the Whites to another miserable away day this season.
Not for the first time, supporters chanted "Warnock, time to go" at their veteran manager, angry at a failure to take chances as they slipped eight points adrift of the play-offs.
Warnock, though, insisted it was a string of open-goal misses and not a fault on his part that was causing the problems, with Ross McCormack the guilty party.
"Unless I run on the pitch and put the chances, I don't know what to do," he said. "It's frustrating. The last three open goals (in games against Cardiff, Wolves and Middlesbrough) are not difficult chances. I thought Middlesbrough were there for the beating.
"We had a great opportunity to take the lead and don't know how we didn't take it. We should be talking about three wins and be right in there."
When it was put to Warnock that he last month sanctioned the sale of 19-goal Luciano Becchio he said: "That's a ridiculous statement".
He vowed to fight on despite crowd unrest, though, saying: "It's a natural thing. If we'd have taken that first chance they would have been chanting our names. It disappoints me when I see some of the comments (about him) but you can only do your best as a manager. I think we've had a good season."
- Sports & Recreation
- Curtis Main