That’s an excellent guide, but the only one that I noticed mentioning the 
trigger (i.e. first interval) is the OpenH264 codec.

I realized I could test this myself by opening Firefox with a blank home page 
on a new profile without an internet connection, then again with an internet 
connection, and comparing the profile folders.  This is my unverified 
observations:


·         The “safebrowsing” folder was the only significant amount of data 
downloaded immediately.  It was several files totalling 4.7MB and happens 
within seconds of opening Firefox for the first time.

·         After about 10 minutes the blocklists were downloaded, and total less 
than a megabyte.

·         After about 20 minutes the GMPs (WebRTC and Widevine) showed up, and 
are several megabytes.

·         There were other tiny things such as certs, but these are in the 
kilobytes.

·         The default new tab page will trigger downloads too, but we will be 
stripping it down to just “top sites” anyway.

Does anyone know how to delay safebrowsing for a few minutes?

-----------------------------------------
Jason Jackson
Computer Systems Technician
North Vancouver School District



From: Enterprise [mailto:[email protected]] On Behalf Of Klaus 
Hartnegg
Sent: June 28, 2018 10:33 AM
Cc: [email protected]
Subject: Re: [Mozilla Enterprise] Profile Update Intervals

On 28. Jun 2018, at 01:18, Jason Jackson 
<[email protected]<mailto:[email protected]>> wrote:
It’d be nice if there was a guide for all these hidden updates and telemetry.

https://support.mozilla.org/en-US/kb/how-stop-firefox-automatically-making-connections


https://www.ghacks.net/2014/06/02/block-automatic-connections-firefox-makes/


--
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