It’s Gbagbo’s first public comments since he was toppled in 2011.
“What awaits us is disaster. This is why I am speaking out. People should know that I am against heading for disaster with our hands tied. We have to talk,” he told French channel TV5 Monde in an interview broadcast on Thursday.
Gbagbo was forced out by forces loyal to Alassane Ouattara, who at the age of 78 is controversially seeking a third term in office.
Ouattara’s move has sparked deadly clashes, prompting many to fear a resurgence of the violence seen in 2010-11, when the country split along north-south lines and around 3,000 people lost their lives.
Gbagbo retains a powerful following in Ivory Coast but has been barred by the country’s paramount court, the Constitutional Council, from contesting the elections on legal grounds.
He was handed a 20-year jail term in absentia by an Ivorian court last November over the looting of the Central Bank of West African States during the 2010-11 crisis.
It is feared this year’s vote could trigger similar clashes.
Ouattara vowed to step down, but his plans were torpedoed in July when his anointed successor, Prime Minister Amadou Gon Coulibaly, died suddenly of a heart attack.
Ouattara said that a 2016 revision to the constitution reset the presidential term counter to zero.
The opposition wants Ouattara to withdraw his candidacy and are demanding an overhaul of the national electoral board and Constitutional Council, which it says are stacked with his loyalists.
Gbagbo said, “I understand (the anger) and I share it.”
But, he said, dialogue was essential.
“Talk! Negotiate! Speak to one another!”
“There is still time to do it, to talk. I would like to tell Ivorians that in this fight over the third term, I, Laurent Gbagbo, former head of state, former prisoner of the ICC, am resolutely on the side of the opposition.
“I say, in the light of my experience, that there has to be negotiations!”