Based in the Belconnen area in the northern part of Canberra, the Firebirds were one of five clubs originally formed for the seniors competition.

Funding and support by the University of Canberra Union resulted in the club adopting the organisation's colours – yellow, red and blue.

The Firebirds followed up in 2006 with the club's second perfect season, posting an 8–0 regular-season record and a 19–7 victory over the Tuggeranong Tornadoes in Capital Bowl XIV.

The Firebirds lost league-leading rusher and 2008 ACT Gridiron MVP Jeremy Milne to a broken leg early in the second quarter when leading 7–6, but used touchdown runs by back-up David Hicks and fullback Reece Cheater to secure the win.

Jeremy Milne was named Capital Bowl XVIII MVP after racking up 157 total yards (133 rushing, 24 receiving) and one touchdown off 17 touches (13 carries, four receptions).

Quarterback Luke Job threw two touchdown passes to receiver Beau Kennett and scored another on a one-yard sneak.

[3] The club's record seventh title – and sixth in seven years – came the following season with an 18–12 win over the Gungahlin Wildcats in Capital Bowl XIX.

Despite losing four-time ACT Gridiron MVP Jeremy Milne to an ankle injury in the second quarter, the Firebirds built an 18–0 lead with less than five minutes remaining.

Free safety and back-up running back Ian Lanham was named Capital Bowl MVP after rushing for 160 yards and a touchdown on 18 carries, in addition to making three solo tackles.

A 49-point first half highlighted the record-breaking performance, which included the highest score in a championship game and largest margin of victory.

The Firebirds defence forced four turnovers, with a fifth occurring on a special teams play, and recorded seven tackles for a loss and one quarterback sack.

Sunny Dhindsa, John Tolsher, Sam Zielke, David Wilkins, Matt Lang, and Beau Kennett were all selected for the Australian Outback Junior Representative Squad that toured in Arizona and California in August 2008.

Linebacker James Tolsher was part of the Australian team for the World Cup qualifying match against New Zealand played in Canberra in January 2009.

New Zealand won the match 12–7 to secure a place in the International Federation of American Football 2009 Junior World Cup.

James Thornhill and Hayden Clark were selected in the Australian Outback team to contest the International Federation of American Football 2016 Junior World Cup in China.