Mozilla has responded to user backlash over its new Terms of Use for the Firefox web browser, which critics claimed gave the company overly broad rights to user data. The browser maker has clarified that the new terms are not a change in how Mozilla uses data, but rather an attempt to formalize its relationship with users and provide more transparency over data practices.

The controversy began when Mozilla introduced a new Terms of Use and updated Privacy Notice for Firefox, aiming to offer users more transparency over their rights and permissions. However, the language used in the terms sparked confusion and concern among users, with some interpreting it as giving Mozilla ownership of user data or the right to use it beyond what's stated in the Privacy Notice.

The specific clause in question stated that users grant Mozilla a "nonexclusive, royalty-free, worldwide license to use" any information uploaded or input through Firefox. Critics argued that this language was too broad and could be misused. Brendan Eich, co-founder and CEO of rival browser maker Brave Software, expressed his surprise and skepticism over the wording, suggesting that it might be related to a business pivot to monetize user data for AI and other uses.

In response to the backlash, Mozilla updated its blog post to clarify that the terms do not give the company ownership of user data or the right to use it beyond what's stated in the Privacy Notice. The company assured users that its data practices remain unchanged and that the new terms are intended to provide more transparency and clarity over how user data is used.

Mozilla spokesperson Kenya Friend-Daniel explained that the company's ability to use data is still limited by what is disclosed in the Privacy Notice. The spokesperson also clarified that data shared with advertisers is de-identified, and that users can opt out of having their data processed for advertising purposes by turning off a specific setting.

The company also provided further context on the use of certain terms in the agreement. For example, the term "nonexclusive" was used to indicate that Mozilla doesn't want an exclusive license to user data, as users should be able to do other things with that data as well. The term "royalty-free" was used because Firefox is free, and neither Mozilla nor the user should owe each other money in exchange for handling the data. Finally, the term "worldwide" was used because Firefox is available globally and provides access to the global internet.

Despite Mozilla's assurances, some users may still be concerned about the broad language used in the terms. This could potentially impact Firefox's market share, which currently stands at 2.54% of the worldwide browser market, behind Chrome, Safari, and Edge.

The incident highlights the importance of clear and transparent communication around data practices, particularly in the context of user privacy and security. As users become increasingly aware of the value and risks associated with their personal data, companies like Mozilla must prioritize transparency and accountability in their data handling practices.