1962120 - cookies from IPV6 url can not be manually deleted

Status: VERIFIED FIXED

(Core :: Networking: Cookies, defect, P2)

Description

[Matthias Metzger]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0

Steps to reproduce:

• access server using ipv6 url: https:// [fdee:1::1]/
• cookie gets set
• leave the site and go to privacy settings -> manage website data -> delete the data for the ipv6 url
• reload the settings page and check website data

Actual results:

cookie for the URL is still present.
Extensions also fail to delete the cookie

Expected results:

cookie schould have been deleted

Comment 1

[Francesco Lodolo [:flod]]

Do you see any error in the browser console when you try to delete them (Tools > Browser Tools > Browser Console, or menu in the top right corner (More Tools > Browser Console)?

P.S. Not sure if this belongs to Settings or Toolkit::Data Sanitization.

Comment 2

[Matthias Metzger]

the Browser console does not show anything when trying to delete the cookie.
I have recorded a quick video showing the behaviour and the browser console: https://www.youtube.com/watch?v=9TPgW3tMfvI

Comment 3

[Mike Conley (:mconley) (:⚙️)]

From what I can tell, about:preferences is talking to the cookie service correctly to delete this cookie, so the issue might be at a deeper level. Moving to Networking: Cookies for now.

Comment 4

[Kershaw Chang [:kershaw]]

Ed, could you take a look at this bug?
Thanks.

Comment 5

[edgul]

Reproduced with:

• simple html page served from local python server python3 -m http.server --bind ::
• Visited http://[::1]:8000/ with browser
• set cookie manually via document.cookie

Note that the issue did not occur with the same server, but when browser accessed page via localhost.

I'll investigate.

Comment 6

[edgul]

Attachment: Bug 1962120 - Fix failure to clear IPv6 hostnames from clearData dialog. r=emz

Comment 7

[edgul]

Attachment: Bug 1962120 - Added test for ipv6 fixup fix. r?emz

Comment 8

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/7016afc5b9f4
Fix failure to clear IPv6 hostnames from clearData dialog. r=emz
https://hg.mozilla.org/integration/autoland/rev/cc75123c0d69
Added test for ipv6 fixup fix. r=emz

Comment 9

[agoloman]

https://hg.mozilla.org/mozilla-central/rev/7016afc5b9f4
https://hg.mozilla.org/mozilla-central/rev/cc75123c0d69

Comment 10

[Bogdan Maris, Desktop Test Engineering]

Reproduced the issue described in comment 0 and comment 5 using an old Nightly build from 2025-04-23. Verified that using latest Nightly 141.0a1 and Firefox 140.0b1 across platforms (Windows 11, macOS 13 and Ubuntu 22.04) the cookies are successfully manually deleted for both localhost and [::1]