Fisher scored off a rebound at 2:38 of overtime to give Ottawa its fourth straight victory, 3-2 over the Tampa Bay Lightning on Wednesday night.
"We've felt like we've upped our game and we're finding little ways to win and trying to be patient regardless of the circumstance in the game," Fisher said. "I think we've done a good job of not panicking and tonight we stuck it out and got a big win."
"I was just trying to crash the net and Philly got a good shot on net and I was able to get the rebound," Fisher said. "It was nice to get that one in overtime. I don't think we played our best game and we have to be better in certain areas."
The Lightning, coming off a 9-3 home loss to Carolina on Saturday night, have lost four straight and 15 of 19.
"We played hard," Lightning coach Rick Tocchet said. "I don't think we gave them much and the goals that they did get they were opportunistic. I thought we played good and I was happy after our last game that they came out with this effort.
"You can tell the guys played a lot harder than Saturday, but it was still a tough one because you want to win these types of games."
The teams traded power-play goals early in the first period, with Murphy opening the scoring for Tampa Bay at 2:37, and Shannon tying it at 4:53.
Kelly gave Ottawa the lead with a short-handed goal at 9:25 of the second, but Hall tied it 13 seconds later with a power-play score.
Ottawa's Jason Spezza appeared to score with just under 5 minutes to play, but the goal was immediately waved off because Spezza kicked the puck into the net. After a video review, the call on the ice stood.
Spezza assisted on Shannon's goal for his 400th assist. ... The Lightning will face Toronto on Thursday night at Air Canada Centre. ... The Senators are 37-17-2-4 overall against the Lightning.