update cookie block errors

[PassionPenguin]

several content are outdated since:

Content blocking was redesigned in Firefox version 70 and is now Enhanced Tracking Protection. Please see the Enhanced Tracking Protection in Firefox for desktop article.

and the cookie & site data tab is redesigned as well

[github-actions]

Preview URLs

• /en-US/docs/Web/Privacy/Guides/Storage_Access_Policy/Errors/CookieBlockedAll
• /en-US/docs/Web/Privacy/Guides/Storage_Access_Policy/Errors/CookieBlockedByPermission
• /en-US/docs/Web/Privacy/Guides/Storage_Access_Policy/Errors/CookieBlockedForeign

External URLs (6)

URL: /en-US/docs/Web/Privacy/Guides/Storage_Access_Policy/Errors/CookieBlockedAll
Title: Blocked: All storage access requests

• https://support.mozilla.org/ (1 time) (Note! This may be a new URL 👀)
• https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-deskto (1 time) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/Web/Privacy/Guides/Storage_Access_Policy/Errors/CookieBlockedByPermission
Title: Blocked: Custom cookie permission

• https://support.mozilla.org/ (1 time) (Note! This may be a new URL 👀)
• https://support.mozilla.org/en-US/kb/content-blocking (1 time) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/Web/Privacy/Guides/Storage_Access_Policy/Errors/CookieBlockedForeign
Title: Blocked: All third-party storage access requests

• https://support.mozilla.org/ (1 time) (Note! This may be a new URL 👀)
• https://support.mozilla.org/en-US/kb/content-blocking (1 time) (Note! This may be a new URL 👀)

(comment last updated: 2025-10-20 14:58:44)

[chrisdavidmills]

Hi @PassionPenguin, and thanks for the update! I've got a few comments for you.

[chrisdavidmills]

Suggested change

	- choosing the _Custom_ Content Blocking and unchecking the _Tracker_ checkbox
	- choosing the _Custom_ Content Blocking and unchecking the _Tracker_ checkbox.

Also, under the "Custom" ETP option, there are checkboxes for "Cookies" and "Tracking content", but not "Tracker".

[PassionPenguin]

well i have no idea what's the respective new entry for this :(

[chrisdavidmills]

It looks to me like sites that can use storage are specified under the "Manage browsing data" option. I think you should replace the current second bullet here with a description of that option.

[PassionPenguin]

in the manage browsing data option dialog, it's like

which, seems to be the tool to just remove a specific site's data, but it will not block the site from having third party cookies

---

i have take a rough look at the firefox codebase, but failed to find the exact related code with the UIs. related constants include BEHAVIOR_REJECT_FOREIGN, BEHAVIOR_LIMIT_FOREIGN and STATE_COOKIES_BLOCKED_FOREIGN, so it may be useful for someone who has knowledge on the changes of the API to help identify the correct place?.

[chrisdavidmills]

Right, OK. We've got one option listed to help with this. Why don't we just remove the second bullet for now, and then get it merged? The rest of your changes are pretty useful.

I'm mainly saying this because I have no idea who I'd talk to about this, and it would be a shame to hold up your PR on this small detail while we go digging for info.

[PassionPenguin]

yes that would be a good point, and I do really appreciate for your help on the improvement of my purposal!

[PassionPenguin]

thank you @chrisdavidmills !

[chrisdavidmills]

Awesome, this is looking good now. Let's get it in. Thanks, @PassionPenguin!