Brian Jensen denied Gabriel Agbonlahor while Friedel saved a long-range strike from Steven Fletcher.
Steven Fletcher's powerful shot put Burnley ahead on 21 minutes after he controlled Brian Jensen's long ball.
There was a blow for the Edinburgh side when striker Steven Fletcher had to be withdrawn on 38 minutes.
Brown scored Scotland's opener with a glancing header from Steven Fletcher's inviting cross.
The 23-year-old becomes Wolves boss Mick McCarthy's third summer signing, joining defender Jelle Van Damme and former Burnley striker Steven Fletcher.
Alexander was then called into action at the other end and did well to parry a powerful 30-yard drive from Steven Fletcher.
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The Scots improved after a poor first half and Brown headed home a Steven Fletcher cross after McFadden had blazed a great chance high and wide.
Lee Bowyer missed a glorious chance from point-blank range for the Blues before they fell behind when Steven Fletcher drove home an 18-yard shot.
Hibs did put the home side under some pressure with Celtic keeper Artur Boruc making saves to deny Steven Fletcher, Guillame Beuzelin and Clayton Donaldson.
But Stoke then conceded two quick goals by David Jones and Steven Fletcher, before a Abdoulaye Faye header made a contest of it after the interval.
Kevin Foley curled Wolves back into it and substitute Steven Fletcher headed in a corner, but despite several late chances they could not force a draw.
Falkirk captain Darren Barr received his first call-up to the Scotland squad in midweek, but the defender presented Steven Fletcher with another chance after being dispossessed.
The former Hearts boss then left Boyd on the bench again as he introduced Iwelumo and Hibs' Steven Fletcher as attacking replacements on the hour mark.
David Jones then stole the show with a 20-yard volley after a cute free-kick from Karl Henry and Steven Fletcher nodded in a second before the interval.
Scotland were rewarded for their markedly improved performance when Steven Fletcher flighted a cross in from the left and Brown flicked a header into the far corner on 56 minutes.
Levein had also chosen Wolves' Steven Fletcher ahead of Kenny Miller as a lone front-man, saying he already knew what the Rangers striker could do in that role.
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Hibs substitute Abdessalam Benjelloun flashed a dangerous ball across the face of goal when he perhaps had time to pick out team-mate Steven Fletcher in a good position.
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Gordon received noisy backing from the Hampden crowd, who were cheering his name throughout the win, which was secured thanks to goals from Ross McCormack and Steven Fletcher.
Hearts goalkeeper Janos Balogh denied Steven Fletcher a close-range winner.
But it was Hibs who ended the half the better side, with Steven Fletcher flashing a drive wide and then having another effort cleared by a deflection off team-mate Sproule.
McFadden, who will miss the Netherlands after picking up a yellow card, wriggled through a succession of challenges to somehow fire the ball across goal but neither Miller or Steven Fletcher could capitalise.
Striker Steven Fletcher departed Hibs to join Burnley this week and Hughes has been linked with moves for Rangers' Alan Gow and Sunderland's Anthony Stokes, the forwards he worked with at Falkirk.
The Tykes fell behind to a Steven Fletcher strike but hit back 60 seconds later through Jon Macken and then in first-half stoppage time with a spectacular strike from Anderson De Silva.
Wolves manager Mick McCarthy has already signed Belgium defender Jelle Van Damme from Anderlecht, striker Steven Fletcher from Burnley and Algeria midfielder Adlene Guedioura who had been on a season-long loan from Charleroi.
Nugent is likely to be the final Burnley signing of a transfer window that has seen them recruit David Edgar, Steven Fletcher, Tyrone Mears, Brian Easton, Richard Eckersley, Andre Bikey and Joe McKee.
Both sides made changes at the break, Fulham bringing on Chris Baird for Pantsil and Wolves introducing Steven Fletcher for goalscorer Van Damme, and the hosts were level within four minutes of the restart.
With a record of seven goals from 15 internationals, Boyd was overlooked as a second half substitute in favour of Chris Iwelumo and Steven Fletcher, who, prior to kick-off, had one cap between them.
Substitute Luis Jimenez made it 5-0 with another penalty, then Steven Fletcher's late double gave Burnley some consolation before Steven Caldwell was sent off in time added on before Chris Eagles then netted a third.
Steven Fletcher flicked on Jensen's long clearance and Paterson - who had earlier troubled the Pompey backline with a jinking run and shot that James saved - fired a brilliant lob over the keeper and under the bar.
Eagles hit the post with a powerful drive and Steven Fletcher had a goal contentiously ruled out for offside as Burnley demonstrated once again that the spirit and quality they show at home will be the bedrock of their battle for Premier League survival this season.
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