LOS ANGELES (AFP) - Former Hewlett-Packard chief executive Carly Fiorina said Wednesday she plans to run for the US Senate in California in a bid to unseat long-serving Democrat Barbara Boxer.

In an opinion piece for the Orange County Register newspaper, Fiorina said she would seek the Republican nomination in next year's mid-term elections with a manifesto promising economic recovery and fiscal accountability.

"Our most pressing problems today are too few jobs for Americans and too much spending in Washington," Fiorina wrote. "Let's put every government budget and every government bill on the Internet for every citizen to see."

Fiorina, 55, served as Hewlett Packard chief for six years until 2005, when she was forced to resign after the company's share price had plummeted.

In 2008 she served as an economic advisor to the failed presidential campaign of Republican John McCain.

Boxer, 68, who was elected in 1992, has already announced her plans to run for a fourth term in 2010.