Google has (always) gathered information about Chrome -- and Chromium -- users by default , including every keystroke typed into the "omnibox". Not easy to disable, either. This seems to be a recent Firefox policy change: all editions of Firefox is now collecting data, such as telemetry, information gathering, usage data. (URL's? Form data?) This is all opt-out instead of opt-in now, and you're asked only after insta…
Firefox does NOT do any this, as far as I know. What is the source of this FUD? A public discussion was started to get to know how people felt about privacy conserving telemetry collection that would be opt out by default. There was massive negative feedback (duh). The feature did not ship in 57. https://medium.com/georg-fritzsche/data-preference-changes-i... "instead we always collect LESS data on Firefox release."
"Firefox by default shares data to: Improve performance and stability for users everywhere
Interaction data: Firefox sends data about your interactions with Firefox to us (such as number of open tabs and windows; number of webpages visited; number and type of installed Firefox Add-ons; and session length) and Firefox features offered by Mozilla or our partners (such as interaction with Firefox search features and search partner referrals).
Technical data: Firefox sends data about your Firefox version and language; device operating system and hardware configuration; memory, basic information about crashes and errors; outcome of automated processes like updates, safebrowsing, and activation to us. When Firefox sends data to us, your IP address is temporarily collected as part of our server logs.
Read the telemetry documentation for Desktop, Android, or iOS or learn how to opt-out of this data collection."
via