China's top cyber authority said on Monday it would carry out a "rectification" of Chinese mobile internet browsers to address what it called social concerns over the "chaos" of information being published online.

The country's strict internet censorship rules have been tightened numerous times in recent years and in the latest crackdown, the Cyberspace Administration of China (CAC) has told firms operating mobile browsers that they have until Nov 9 to conduct a "self-examination" and rectify problems.

The problems include the spreading of rumours, the use of...