remember the new Coverage Telemetry shit? with a **hidden** opt-out pref? guess what, they are already collecting for 3 months ...
https://bugzilla.mozilla.org/show_bug.cgi?id=1487578 - **3 months ago**: "I see data coming in that looks reasonable"
guess what else ...
"It has also replaced the previous version that was there (from bug 1480194)" and oh, surprise surprise, 1480194 is ACCESS DENIED!
they're not just using private tickets to hide security critical information from potential hackers and blackhats, no they also use it to hide shady AF things. Things that they fully know are shady as fuck and that they absolutely know a lot of people would not like. There's simply no other reason why they'd do that
but wait, that's not all. If you think an opt-out pref that 99% of people wouldn't know about even if it showed up in about:config BUT ALSO HAPPENS TO BE HIDDEN is kind of questionable, well ... the system addon that they use for this shit apparently looked or still looks for `toolkit.telemetry.coverage.opt-out` [1] instead of `toolkit.coverage.opt-out` as their documentation [2] claims
[1] https://github.com/mozilla/one-off-system-add-ons/pull/131/files#diff-6e0cbf76986d04383ccb32a29ef27a7aR25
[2] https://hg.mozilla.org/mozilla-central/file/tip/toolkit/components/telemetry/docs/data/coverage-ping.rst#l32
It's time to opt out of all that shit for good. Disable system addon updates and kill it at the root
> In FF61 and lower, you will not get any System Add-on updates except when you update Firefox
on its own that's not true. You will get SA updates unless you disable app update checks + auto install. Let's just remove that as well.
* move 1260 to 122x
"disable or limit SHA-1 certificates" is about certs, not ciphers.
Because CERTS is 1st in the title I moved it to the 1st item there because it's arguably also the most important of the lot (and renumbered the rest)
We can also drop HSTS from the subgroup title because there's nothing HSTS left atm.
FYI, the https://www.privacytools.io/webrtc.html test in our wiki is 404, so I gave it a strikethru and added this one. This is also handy for 2001, but do we need to double up on it? We're only disabling WebRTC because of IP leaks, so I don't see the point in testing if WebRTC is disabled.
Session Restore cannot be disabled in Normal mode, it is also used internally. FYI: PB Mode does not use Session Restore. The description is still not 100%, as it refers to what is restored, not what is kept in the recovery.jsonlz4 (at least for tabs)
flipped true in FF54: https://bugzilla.mozilla.org/show_bug.cgi?id=1026804 but unsure when the pref itself was introduced. note: other timing prefs were always in 2400's see 4602: [2411] disable resource/navigation timing / 4603: [2412] disable timing attacks
it has zero to do with privacy etc, and in fact most users will only ever encounter it once (and check the box) when they first go to about:config, so it's not even useful as an override or a new profile IMO. This removes one of three numbers that don't have a section
