An Ethiopian woman who strangled her 7-month-old son then told police that he fell out of a third-story window in Normal Heights was convicted Thursday of first-degree murder and felony child abuse.

Badasso, 35, who pleaded not guilty by reason of insanity, was found guilty after less than two hours of deliberations.

A jury will now have to determine if the defendant was insane at the time of the murder. A sanity phase of trial is scheduled March 3.

Deputy District Attorney Nicole Rooney told a jury in her opening statement of the guilty phase that Badasso strangled her son in two ways — with her hands and with a ligature — on Sept. 7, 2012.

Rooney said Badasso grabbed, squeezed and shook the baby before killing him.

Prior to the killing, Badasso told a therapist that she had anger issues, a history of violence and had difficulty controlling her impulses, according to Rooney.

The boy — named David — was found about 5 p.m. by two passersby in an alley below a third-story apartment where Badasso was staying.

“Please let that be a doll and not a baby,” one of the passersby said as they came upon the child, Rooney told the jury.

The person who spotted the body said the mother seemed calm and “uncaring” as they called 911 to try and save the child’s life.

Badasso told police she accidentally dropped the baby while trying to open a window.

An autopsy revealed the baby had been strangled, “murdered by his own mother,” Rooney said.

Defense attorney Amy McDonald told the jury that Badasso was beaten daily by her father in Ethiopia, leaving her blind in one eye.

Badasso was left with memory problems and tended to “disassociate” herself from her problems, her attorney said.

At 12 years old, Badasso was held down and had her female genitalia mutilated, McDonald said.

Badasso escaped from Ethiopia and came to the United States in 2000, but suffered from major depression and tried to kill herself at least twice, McDonald said.

The defendant had two miscarriages, began to hear voices and was raped by a stranger in 2011, her attorney said.

Badasso got pregnant and was a good mother to David, McDonald said.

The defendant’s doctors and therapists disagreed on whether Badasso should be on medication for anxiety, depression and lack of sleep, McDonald said.

Badasso finally took some prescribed medication and went into a “disassociate state” the day of the killing, feeling like she was in a dream, her attorney said.

“It’s horrifying,” McDonald told the jury, saying her client remembers few details about the killing.

McDonald said Badasso felt helpless watching herself kill her child and imagined that he fell out of the window.