Low economic growth, social unrest has fuelled fears that France's debt crisis could spread across the euro zone, according to reports.Over 4 lakh protestors took to the streets in France this weekend, including more than 1 lakh in the capital, Paris, Bloomberg reported citing data from the country's Interior Ministry. Overall, support for the movement has sustained it added, with a Cluster 17 poll of 3,000 adults for L’Opinion carried out Oct. 19-22 finding majority support at 53%, it added.However, 59% of the 1,500 adults interviewed want the demonstrations to end quickly, up 6 points, as worries increase about the economic and social fallout.Unrest in France fuels fiscal fearsAccording to the report, the unrest has increased fears about public finances.