1307867 - How to turn off captive portal detection - detectportal.firefox.com/success.txt

Status: RESOLVED WORKSFORME

(Core :: Networking, defect)

Description

[pawel]

User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0
Build ID: 20161005030211

Steps to reproduce:

Hi I would ask about Firefox .Each time I'm opening browser this website is visiting by Firefox.How to turn off this action.
http://detectportal.firefox.com/success.txt

Comment 1

[Esther Monchari]

your steps to reproduce not clear. https://developer.mozilla.org/en-US/docs/Mozilla/QA/Bug_writing_guidelines

Comment 2

[pawel]

What isn't clear.Nightly any time is starting do connection on this website.Nightly not inform me about it.

Comment 3

[Tooru Fujisawa [:arai]]

it's a request to detect captive portal

https://dxr.mozilla.org/mozilla-central/rev/e8fa13708c070d1fadf488ed9d951464745b4e17/modules/libpref/init/all.js#5038
> pref("captivedetect.canonicalURL", "http://detectportal.firefox.com/success.txt");

it's from bug 752982 and bug 1048131.

Comment 4

[pawel]

I understated you but.I should to know about Nightly connection.The browser is main and I want to know what is going on.Richard Stallman said Software is for me and and we should to know what it is doing.

look what next Nightly is doing .

gv.symcd.com
clients1.google.com
ocsp.digicert.com

Comment 5

[Esther Monchari]

Usually Captive portals are generally found at public wi-fi hot-sports,Firefox uses this to detect if it's trapped in a captive portal (detectportal.firefox.com/success.txt).

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

Comment 6

[pawel]

Thanks a lot but I do not see any advice to turn off it 

http://detectportal.firefox.com/success.txt

Comment 7

[Valentin Gosu [:valentin] (he/him)]

(In reply to pawel from comment #6)
> Thanks a lot but I do not see any advice to turn off it 
> 
> http://detectportal.firefox.com/success.txt

You can turn it off by setting the network.captive-portal-service.enabled pref to false.

Note: The feature is currently only enabled on nightly.

Comment 8

[simin75simin]

same problem, see https://www.yeahhub.com/solution-disable-detectportal-firefox-com-requests-burp-suite/

Comment 10

[Sami Farin]

Firefox 98.0 on Fedora Linux tries to access detectportal.firefox.com when I have network.captive-portal-service.enabled=false .