Palm Beach, Fla., socialite Mary Alice Asher was arrested Thursday when police seized more than a pound of cocaine valued at $25,000, marijuana plants and 19 bottles of pills at her home, the Associated Press reported yesterday.

Asher, the former wife of Russell Firestone, heir to the Firestone tire fortune, was released on $1,000 bond, police said. She is now married to Kentucky oil company executive John Asher.

Sgt. Henry Marchman said the house was searched after Asher summoned paramedics and police, saying she was having a seizure, and officers noticed drugs in the house.

When Mary Alice Sullivan married the Firestone heir in 1961, she was a schoolteacher. The marriage ended in divorce in 1967 after a nine-month trial that included testimony of extramarital activity by both husband and wife. In 1974, the year she married Asher, she was awarded a lifetime alimony from Firestone of about $30,000 a year, regardless of whether she remarried.

Mary Asher also won a battle against Time magazine in a libel suit that went to the Supreme Court. She said Time erroneously described the grounds for divorce, and the court ruled in 1976 that she had not become a "public figure" because of her involvement in a sensational divorce case.