https://www.bbc.co.uk/news/uk-england-l ... gn=KARANGA
District Judge Paul Goldspring said he had found Webbe "untruthful" in her evidence.
"Some of the things she said I believe were made up on the spur of the moment," he said.
"Some things she said in the witness box just don't bear scrutiny.
"In short, I find Ms Webbe to be vague, incoherent and at times illogical."
He released Webbe on unconditional bail but warned her that she could face prison when she is sentenced on 4 November.
"Threatening to throw acid at somebody and to send intimate photographs to family members crosses the custody threshold," he added.
After the verdict, Webbe said: "I am innocent and will appeal this verdict. As I said in court and repeat now, I have never threatened violence nor have I ever harassed anyone."