The Denmark international joined the Toffees last summer from German side Nuremberg on a one-year contract but immediately dislocated a shoulder on international duty and that injury kept him out for seven months.
He finally made his debut on March 21 but went on to appear as a second-half substitute in Everton's FA Cup final defeat to Chelsea. On that basis David Moyes was only prepared to offer another 12-month contract to the right-back and so Jacobsen went looking for alternatives and found Rovers willing to sign him for two years.
But the 30-year-old has no axe to grind with Moyes as he prepares to face his former boss.
"I had my ups and downs there but when I look back at the year I was still pleased with the way things turned out," said Jacobsen, who has started all four of Blackburn's four league matches this season. The manager wanted to offer me a one-year deal and I wanted to get a bit of security in my life.
"My wife is having a child, hopefully next week, so I didn't want to move around a lot. I understand him fully. I was not able to play for most of the season and was struggling to get back to get my fitness level up again and I can't really blame him. I still think Everton are a great club. I talk to a lot of people there and I have to thank them for letting me play in an FA Cup final."