The church was filled with photos of O'Riordan performing onstage with her band, and her two meetings at the Vatican with the beloved, late Pope Saint John Paul II. Items associated with the singer, including a guitar and a platinum disc, were laid at the altar.
He also said: "Her kind personality and attractive singing voice earned for her numerous admirers".
He said the numbers she rescued from the darkness of depression is impossible to count and that she is now singing in Heaven.
Bishop of Limerick Brendan Leahy has described her death as a "sad loss of a young and precious life". She used to make me laugh.
"These talents are to be used for the honour and glory of God, and for the benefit of others", the priest said.
She did have an unique respect for everybody. "For that we sincerely thank her from our hearts".
At midday today, independent Irish radio stations will play The Cranberries" "When You're Gone' in tribute to Dolores O'Riordan.
Image Former school classmates of the singer were among those who paid their respects
Music at the mass was performed by the Irish Chamber Orchestra Quartet. A nephew brought a family heirloom, the picture of Our Lady of Dolours, after whom Dolores was named, and which has been passed down through the generations.
"Of course she was a superstar and an inspiration to so many people, not least from Limerick". Her bandmates set a floral tribute next to her coffin during the public viewings, with a note that read, "The song has ended, but the music lingers on", referencing one of the band's most popular songs, "Linger".
Father James Walton will be the chief co-celebrant, alongside Archbishop Kieran O'Reilly, Archbishop of Cashel and Emly and Archbishop Dermot Clifford, the Archbishop Emeritus of Cashel and Emly.
Her remains will repose at Cross's Funeral Home in Ballyneety, Co Limerick, on today, Monday 22 January, from 4pm followed by removal at 8pm to Saint Ailbe's Church, Ballybricken.
Dolores was laid to rest in her native Ballybricken, County Limerick, as family, friends and fans paid their respects to the 46-year-old.
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The investigation is ongoing and more information in the case will be shared as becomes available, said police. Authorities said they were not releasing students from the premises until all students were accounted for.