Core Viewpoint - Beijing Mozhi Huohu Information Technology Co., Ltd. will terminate all operations related to Mozilla and Firefox browser in mainland China by September 29, 2025, following an agreement with Mozilla [1][5][7]. Group 1: Company Operations - The termination includes the discontinuation of Firefox accounts and synchronization features, although the Firefox browser itself will continue to operate and receive updates [2][5]. - The Firefox account website specifically for Chinese users has stopped new user registrations and will close on September 29, 2025, with all related data being deleted [7]. - The original Chinese version of the Firefox website will no longer provide product downloads, directing users to the international download site instead [7]. Group 2: Company Background - Beijing Mozhi Huohu was established in March 2011, with a registered capital of 1 million RMB, and is fully owned by Guo Yuanzheng [5][8]. - The company has registered multiple "FIREOS" trademarks across various international classifications, including advertising and communication services [8][10]. - Since January 2025, the company has faced multiple enforcement actions, accumulating over 36 million RMB in executed amounts [8].