Two mistakes were the difference between the side, according to a Dunfermline boss who believes his side matched Hearts in all but the score.
"We were every bit as good as them bar the mistakes," Pars manager Jim McIntyre told BBC Scotland after the 2-0 defeat by the Edinburgh side.
"We were looking for a reaction today from two bad results and we certainly got that in terms of performance.
"The mistakes have unfortunately happened and that's cost us the game."
Andy Webster headed Hearts into the lead shortly before the break and Rudi Skacel added the second.
“We are on a poor run, there's no denying that, but it was more important for me that we got back to competing ”
Dunfermline Athletic manager
"A corner kick has not been cleared at the front area and they have put it away," said McIntyre.
"It is a gift of a goal from our point of view and, for the second one, Paddy Boyle has been going forward and tried a crossfield pass that put them clear.
"These are the types of things that lose you games at this level because you get punished."
Dunfermline rarely tested Hearts goalkeeper Marian Kello, but McIntyre was at least pleased that they put the visiting defence under more pressure after the break.
"I don't think we ever looked in danger of losing the game," he said.
"We said to them, for all we don't look like conceding, we need to threaten more and have more belief on the ball and we did that.
"We are on a poor run, there's no denying that, but it was more important for me that we got back to competing.
"We never looked like we were outclassed given the size of the budget Hearts have compared to ours.
"There are lots of positives to take out of the game although it is difficult at the moment to think that way."