Nathan Peterman replaced Taylor on fourth-and-3 and completed a 14-yard pass to Deonte Thompson.
Bortles also provided an unexpected boost in the running game, picking up a career-high 88 yards on 10 carries and extending multiple drives with his legs.
Buffalo had more success (148 yards), but failed to cash in on a first-and-goal opportunity at the Jaguars' 1-yard line.
Bortles' performance against the Bills was far from his best. "On offense, we have to get things figured out because 10 points is not going to win a game in the playoffs".
In Jacksonville's first home playoff game since 1999, the Jaguars' offense struggled, but produced a scoring drive late in the third quarter that was enough to put the team over the top.
Bortles has mostly played well this season, but his critics will point to his sluggish first half.
"I thought he handled himself just like the rest of our football team", McDermott said, "with class and with a lot of pride".
Taylor's helmet slammed hard against the ground after getting thrown down by Dante Fowler Jr. "Jacksonville has played the Bills down here, and I've been to all the games, and this is unprecedented". In the opening half, this looked like the type of the game the 2017 Jaguars lost because of inept offensive play. They took over at their 47 with 40 seconds remaining and got into field-goal range on Blake Bortles' scrambles of 20 and 12 yards.
Even if the Jaguars somehow shock the Steelers, you can't see them going on a Super Bowl run because Bortles would do something to get in the way.
"Yeah, you know, we had done a good job of calling a stunt". If all else fails, this first playoff game in 18 years at least showed what they obviously need to improve on for next season.
"Usually in situations like that when we're up in the two-minute with the corners, we play 10 yards off and not more", Ramsey said.
Love him or hate him, Blake Bortles beat the Buffalo Bills on Sunday afternoon. A few plays later, Peterman's pass was deflected and picked off by Jalen Ramsey. "Sorry we couldn't get the win for them".
"The atmosphere was incredible", Colvin said.
Bills: Safety Micah Hyde left the game in the third quarter and was being evaluated for a concussion.
Bortles, after finishing the first half completing 6 of 15 passes for 33 yards with no touchdowns, led a 15-play, 86-yard drive that gave the Jaguars their first lead. Incognito suffered a shoulder injury, Clay went out with a hamstring injury, Hyde went out twice in the third quarter, and White had issues with cramping. Receiver/punt returner Jaydon Mickens left with a hamstring injury and did not return.
Ben Roethlisberger threw five interceptions, the most of his career, including two in the third quarter that were returned for touchdowns, wiping out a 9-7 lead.
Jacksonville, which won the AFC South title and the No. 3 seed for the AFC playoffs, advances to a conference semifinal next Sunday at No. 2 Pittsburgh.