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Re:LibreWolf – A fork of Firefox, focused on privacy, securi... by dblohm7 on Thursday November 04, 2021 @05:38PM (#29112836)
In Firefox:

point your url bar to about:telemetry

It shows you all the data that has been gathered. (Though IIRC it might still show stuff even when you've disabled telemetry -- in that case the data is being aggregated locally but not sent.)

Go to https://telemetry.mozilla.org

To look at the data on the server side. There are more sophisticated ways of querying it, but obviously not everybody can just be handed access to run arbitrary analysis code.

Probe dictionaries:

https://searchfox.org/mozilla-central/source/toolkit/compone...

https://searchfox.org/mozilla-central/source/toolkit/compone...

https://searchfox.org/mozilla-central/source/toolkit/compone...

Re:LibreWolf – A fork of Firefox, focused on privacy, securi... by aabbcc1241 on Friday November 05, 2021 @01:59AM (#29115954)
Just checked about:telemetry, it seems most data are about CPU and memory stats, nothing related to browsing history.
Re:LibreWolf – A fork of Firefox, focused on privacy, securi... by dblohm7 on Monday November 08, 2021 @05:08PM (#29154904)
Mozilla doesn't collect browsing history, period.
Re:LibreWolf – A fork of Firefox, focused on privacy, securi... by hulitu on Thursday November 04, 2021 @06:14PM (#29113145)
You forgot safe browsing.
Re:LibreWolf – A fork of Firefox, focused on privacy, securi... by dblohm7 on Thursday November 04, 2021 @07:13PM (#29113590)
What about it?

How you probably think it works in Firefox and how it actually works in Firefox are two different things, by the way:

https://feeding.cloud.geek.nz/posts/how-safe-browsing-works-...

Re:LibreWolf – A fork of Firefox, focused on privacy, securi... by hulitu on Friday November 05, 2021 @08:46AM (#29118416)
As soon as i start firefox on windows it connnects to 1e100.net and makes a lot of connection to this domain even when no page is displayed (just the start screen). This is another reason why i'm in the process of switching from Firefox to another browser. A program shall not initiate network connections if not asked to.