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Nemeski to Firefox@lemmy.ml •
edit-2
10 months ago

Firefox Blocks 0.0.0.0 IP Addresses: Tell Us What This Means To You!

connect.mozilla.org

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31
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  • cross-posted to:
  • firefox@lemmy.world
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Firefox Blocks 0.0.0.0 IP Addresses: Tell Us What This Means To You!

connect.mozilla.org

Nemeski to Firefox@lemmy.ml •
edit-2
10 months ago
message-square
31
fedilink
  • cross-posted to:
  • firefox@lemmy.world
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  • @MangoPenguin@lemmy.blahaj.zone
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    27•10 months ago

    I didn’t even realize 0.0.0.0 was a valid address to enter into a browser! TIL.

    • Possibly linux
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      32•10 months ago

      On Linux it is just a catch all address (listen on all interfaces)

      Elsewhere it doesn’t do anything since I don’t believe it is part of the networking standards

      • @MangoPenguin@lemmy.blahaj.zone
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        14•10 months ago

        Yeah I’m familiar with that part, I just meant in context of a browser being able to connect to it.

        • @sugar_in_your_tea@sh.itjust.works
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          2•10 months ago

          If I were implementing it, I’d just list all interfaces on the machine and see if there’s a service bound to it on the given port. There’s probably only one, but it’s technically undefined behavior I think.

  • Possibly linux
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    20•10 months ago

    What is the use case for 0.0.0.0

    • RvTV95XBeo
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      24•10 months ago

      Just in case you want to do nothing, nowhere in particular.

    • @sugar_in_your_tea@sh.itjust.works
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      6•10 months ago

      0.0.0.0 binds to all addresses on the machine for servers, but I don’t know what a browser would do when trying to resolve it. I guess look at all addresses on the machine and see if anything has bound to the indicated port on that address? First one it finds wins?

  • @RedWeasel@lemmy.world
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    17•
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    10 months ago

    I just wish they’d stop blocking http requests on lan addresses honestly.

    Thanks for the suggestions. While I was investigating I ended up looking and had a proxy issue. Obviously a problem on my part.

    • Possibly linux
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      18•10 months ago

      Firefox doesn’t block http at all

      • @RedWeasel@lemmy.world
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        10 months ago

        Try the Firefox Developer version. No addons.

        EDIT: Thanks for the suggestions. While I was investigating I ended up looking and had a proxy issue. Obviously a problem on my part.

        • @sugar_in_your_tea@sh.itjust.works
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          4•10 months ago

          That would kill development, because accessing http services locally is something pretty much only developers do. What is the error message?

          • @RedWeasel@lemmy.world
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            1•10 months ago

            Unable to connect

            Firefox can’t establish a connection to the server at 192.168.2.210.

            The site could be temporarily unavailable or too busy. Try again in a few moments.
            If you are unable to load any pages, check your computer’s network connection.
            If your computer or network is protected by a firewall or proxy, make sure that Firefox Developer Edition is permitted to access the web.
            

            I don’t see an error in the log about the specific page I am trying to access, but another had a link to https://support.mozilla.org/en-US/kb/https-only-prefs?utm_source=mozilla&utm_medium=firefox-console-errors&utm_campaign=default&as=u

            • Possibly linux
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              2•10 months ago

              I don’t think they ware going to start disabling http. Http is needed in a lot of cases to get https plus there are still use cases for http like testing.

              Have you fired up Wireshark and looked at what port it is connecting to?

              • @RedWeasel@lemmy.world
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                1•10 months ago

                Thanks for the suggestions. While I was investigating I ended up looking and had a proxy issue. Obviously a problem on my part.

            • @RedWeasel@lemmy.world
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              1•10 months ago

              And of course adding an exception or turning it off doesn’t work either.

              • @sugar_in_your_tea@sh.itjust.works
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                1•10 months ago

                Perhaps a bug then? AFAIK, “developer edition” is basically just nightly.

    • @KickMeElmo@sopuli.xyz
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      16•10 months ago

      Pretty sure you have an addon doing that, because Firefox doesn’t.

      • @RedWeasel@lemmy.world
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        1•10 months ago

        Firefox Developer with no addons

    • @flux@lemmy.ml
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      5•10 months ago

      Do you have standard Firefox with default options that does this? This has not been my experience.

      You could try out with a new profile if it works out the same.

      • @RedWeasel@lemmy.world
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        1•10 months ago

        I just tried to use the Developer version. With no addons.

    • @EpicMuch@sh.itjust.works
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      3•10 months ago

      Could you share a link for me to read up more on this?

      • @RedWeasel@lemmy.world
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        1•10 months ago

        I was trying to use the Firefox Developer version. Just straight up refused.

  • Eager Eagle
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    8•10 months ago

    Fine by me. I self-host a lot of stuff but never used 0.0.0.0 for browsing, so I just disabled it here to try it out.

  • @cmgvd3lw@discuss.tchncs.de
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    7•10 months ago

    Shit I used it access the interdimensional cable TV.

  • @Dave@lemmy.nz
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    7•10 months ago

    The linked blog post explains about the vulnerability, I thought it was quite interesting.

  • @HubertManne@moist.catsweat.com
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    2 months ago

    deleted by creator

    • @reattach@lemmy.world
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      19•10 months ago

      Did you mean to comment on this post? It’s not showing as NSFW to me

      • Squiddlioni
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        8•10 months ago

        It shows an 18+ tag for me too, and the image is blurred. I assume it’s because of our host software. I’m on kbin.melroy.org (Mbin), and the original commenter is on moist.catsweat.com (also Mbin).

        • @reattach@lemmy.world
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          3•10 months ago

          Strange - it seems that the NSFW tag doesn’t federate between Mbin and Lemmy?

          Another day, another quirk of the Fediverse.

          • Alfenstein
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            3•10 months ago

            But the post is on lemmy.ml So mbin default federation behaviour is to mark it as nsfw? That’s weird

            • @reattach@lemmy.world
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              3•10 months ago

              True - even stranger

    • @ReversalHatchery@beehaw.org
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      2•10 months ago

      wrong post?

      • @HubertManne@moist.catsweat.com
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        1•
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        2 months ago

        deleted by creator

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