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Support » Plugin: CM CSS Columns » And Firefox
(@mythusmage)
7 years, 6 months ago
Would adding -moz-column-span make a difference?
https://wordpress.org/plugins/cm-css-columns/
(@codemacher)
This would change nothing, the firefox doesn’t support this feature. See http://www.w3schools.com/cssref/css3_pr_column-span.asp on the bottom for the support list.