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telemetry, privacy settings

Learn what technical and interaction data Firefox collects, how it’s used, and how to manage or opt out of these settings across desktop, Android, and iOS.

[[Template:FirefoxPrivacyNotice]] Firefox collects technical and interaction data to understand how you use the browser and to make it better for everyone. This data helps Mozilla fix bugs, improve performance, and add features that people love. This article explains what data is collected, how Mozilla uses it, and how you can turn off technical and interaction data collection on your device. __TOC__ =What is technical and interaction data?= Technical and interaction data, also called ''telemetry'' data, is information about how Firefox functions on your device and how you use its features. This includes performance details like page load times, and memory usage, as well as insights into which Firefox features you interact with, such as bookmarks, tabs, or settings. Additionally, it collects general device information, including your operating system, browser version, and hardware specifications. Mozilla gathers this data to enhance Firefox while respecting your privacy. {note}This data doesn’t include information like your browsing history, search queries, or saved passwords.{/note} =Where can I learn more about what specific data is collected?= For a more detailed view of the technical and interaction data collected by Firefox, see the definitions in the [https://dictionary.telemetry.mozilla.org/ Glean Dictionary]. =How does Mozilla use this data?= Mozilla uses technical and interaction data for many things, including to: *Fix problems: Identify bugs and improve Firefox’s performance. *Build better features: See which features are popular and how we can improve them. *Understand trends: Learn how people use Firefox without compromising their privacy. You can learn about all the ways we use technical and interaction data in our [https://www.mozilla.org/privacy/firefox/ Privacy Notice]. =How to turn off technical and interaction data collection= If you’d prefer to opt out of this data collection, you can easily turn it off in Firefox. Here’s how to do it on your device: {for fx136}{note} '''Note:''' Turning off technical and interaction data does not disable or prevent the DAU (daily active users) ping. To opt out, follow the steps in [[Manage daily usage ping data collection settings in Firefox]].{/note}{/for} ==On desktop== #Open Firefox and click the menu button ≡ in the top-right corner. #Select {menu Settings}. #Go to the '''Privacy & Security''' panel. #Scroll down to '''Firefox Data Collection and Use'''. #Uncheck the box next to {for not fx136}'''Allow Firefox to send technical and interaction data to Mozilla'''{/for}{for fx136}'''Send technical and interaction data to Mozilla'''{/for}. #;{for not fx135}[[Image:Fx128DataCollection-OptOutSetting]]{/for}{for =fx135}[[Image:Fx135DataCollection-OptOutSetting]]{/for}{for fx136}[[Image:Fx136settings-DataCollectionOptOut]]{/for} If you opt out of sending telemetry data, we will also treat this as a request to delete any data we previously collected. Data will be deleted within 30 days after you opt out. ==On Android== #Open Firefox and tap the menu button ⋮ in the top-right corner. #Select {menu Settings}. #Tap '''Privacy and Security''', then tap '''Data collection'''. #Toggle off '''Send technical and interaction data'''. [[Image:Data collection android|width=350]] ==On iOS== #Open Firefox and tap the menu button ≡ at the bottom of the screen. #Select {menu Settings}. #Scroll down to the '''Support''' section. #Toggle off '''Send Technical and Interaction Data'''. #;[[Image:ios send data|width=350]] =Related content= If you’d like to dive deeper into how Firefox handles your data, check out these resources: *[[Share data with Mozilla to help improve Firefox]] *[https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/index.html Telemetry — Firefox Source Docs documentation] {for win} *[[Telemetry collection - Windows default browser trends]] {/for}