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submitted 7 months ago by glowie@infosec.pub to c/firefox@lemmy.ml

I have all Firefox Data Collection and Use options disabled.

Anyone know what all of these services are doing? I assume they're for auto updates, account sync, and maybe pushing Pocket ads and/or sponsored pins?

Likely, I'll block most, but curious if anyone knew.

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[-] chagall@lemmy.world 61 points 7 months ago

You can see the requests for Pocket, certificates and the captive portal check since those are in the actual url name. In addition to those, FF phones home for browser updates, extension updates, FF sync, safe browsing, etc.

[-] stoy@lemmy.zip 35 points 7 months ago

I just googled a few URLs here, and found the following:

mozgcp.net is the Mozilla Google Cloud Platform, looking at the links it connects to, it looks as if it is accessing settings for Google, then finding some certificates, accessing pictures for the Pocket service and doing some product detection, why, I have no idea.

moz.works is Mozilla's content delivery network, porbably nothing to worry about.

mozaws.net is probably a service running on AWS, the autopush service seems to deal with the Push API: https://developer.mozilla.org/en-US/docs/Web/API/Push_API

mozilla.com looks quite benign at first glance, but googling firefox contile tells you that that service is used to push ads on the new tabs page: https://mozilla-services.github.io/contile/

[-] ReversalHatchery@beehaw.org 12 points 7 months ago

Detectportal is for captive portal detection, so that firefox knows if you need to log in on a captive portal before using the public wifi network you are connected to.

If that's a stationary computer, that's probably not needed, it can be disabled in about:config so it's easier on the firewall

[-] glowie@infosec.pub 5 points 7 months ago

Awesome, much appreciated

[-] hal_5700X@lemmy.world 4 points 7 months ago

mozgcp.net is the Mozilla Google Cloud Platform, looking at the links it connects to, it looks as if it is accessing settings for Google, then finding some certificates, accessing pictures for the Pocket service and doing some product detection, why, I have no idea.

Also Google Safe Browsing?

[-] PeachMan@lemmy.world 35 points 7 months ago

Sounds like it's pretty standard, benign stuff. Luckily FF is open source, so if this freaks you out, then try one of the more private forks like LibreWolf. You won't see these same connections there.

[-] glowie@infosec.pub 6 points 7 months ago

Fresh install of LibreWolf and it's made a bunch of outbounds. Some seems related to it auto-installing uBlock. Others similar to default FF.

[-] RustyShackleford@literature.cafe 12 points 7 months ago

Looked up 2 of them, seems like they are settings and files, stored on Googles servers, but encrypted by the time it reaches Google.

Short of someone with a quantum computer, I doubt anyone will decrypt them, along with the billions of other user files out there. Suffice to say, don’t store/link anything sensitive if you’re worried.

Blocking might just break features, but be wary to see what’s broken based on what’s disabled and see if it can just be manually disabled in settings first.

[-] glowie@infosec.pub 2 points 7 months ago

I did see a reddit thread briefly talking about this, but wasn't sure how accurate it was. Thanks!

[-] RustyShackleford@literature.cafe 7 points 7 months ago

No problem, I’m not exactly a fan of the cloud myself, but it’s being forced on us. It feels a bit like a fad, but I still store everything on secondary storage.

[-] inspxtr@lemmy.world 5 points 7 months ago

How do you view these and how would you block them by the way? Via uBlock?

[-] glowie@infosec.pub 5 points 7 months ago

For my work machine I've got to use macOS. These connections were seen with the Little Snitch app. Highly recommend it.

[-] inspxtr@lemmy.world 3 points 7 months ago

gotcha! I’ve just started to use opensnitch (for linux) but I don’t usually inspect the detailed connections that often. thanks for the tip on firefox, I’ll be on the lookout for those.

[-] glowie@infosec.pub 3 points 7 months ago

Nice, would also recommend Safing Portmaster for Linux, if you've not tried it yet. A great FOSS tool for managing network connections.

[-] inspxtr@lemmy.world 3 points 7 months ago

thanks for the suggestion! will check it out!

this post was submitted on 18 Nov 2023
63 points (85.4% liked)

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