Britton joined Second Division champions Livingston in June and played in around half the club's league fixtures, scoring five times. The following season, he played slightly fewer matches but scored a hat-trick in his final appearance as Livi won the First Division. Rather than move back into the Premier League, Britton stayed in the First Division by returning to Partick, who had just clinched the Second Division title. Britton hit twelve goals in the league as The Jags won a second successive title, ensuring he also won a second successive First Division title. Partick finished in tenth place in 2002-03 with Britton netting five league goals. In December the following season, Britton was appointed co-manager with Derek Whyte but the pair could not prevent Thistle from relegation. In 2004-05, Britton played once – in September – before being dismissed from Thistle in January 2005. After training with Motherwell, Britton signed a short-term deal in March, making three substitute appearances towards the end of the season. Britton then had a short second spell with Dundee at the start of 2005-06, combining his playing duties with an assistant manager role, before having his contract terminated in August. Britton, who had been acting as caretaker manager, joined Brechin City a week later and played out the season with them.
At the end of the season, Britton left Brechin to become manager of Stranraer Britton made his last senior appearance in November 2006 as an 85th-minute substitute but under his leadership, Stranraer finished in the relation play-off place and were relegated after losing to East Fife. In January 2008, with the team lying third, Britton won the Third Division Manager of the Month award for December but resigned just a month later to return to Partick for the third time as assistant manager.