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I've been blocking 3rd-party cookies since a decade now. I have never witnessed any website breaking. And I do regularly buy from online shops (ebay, amazon, lo

I've been blocking 3rd-party cookies since a decade now. I have never witnessed any website breaking. And I do regularly buy from online shops (ebay, amazon, lots of others) while blocking 3rd-party cookies. I'd really want to know which websites do break, and if they do, in which fashion.

jmspring 8y ago
I’ve had online bill pay sites - typically banks - fail with some tracker blocking enabled.
- jiveturkey 8y ago
  same. those all work for me now, though, since maybe 1 year ago.
sammacbeth_ 8y ago
Here are some examples: https://whotracks.me/blog/block-third-party-cookies.html https://whotracks.me/blog/block-third-party-cookies.html
Mithriil 8y ago
Do you use an add-on to block cookies? If not, how?
- crtasm 8y ago
  Firefox has an option for allowing third party cookies: always/from visited/never.
- coolspot 8y ago
  I also recommend Cookie AutoDelete for firefox[1] and Chrome[2]. 1 - https://addons.mozilla.org/en-US/firefox/addon/cookie-autodelete/ https://addons.mozilla.org/en-US/firefox/addon/cookie-autode... 2 - https://chrome.google.com/webstore/detail/cookie-autodelete/fhcgjolkccmbidfldomjliifgaodjagh https://chrome.google.com/webstore/detail/cookie-autodelete/...
joemccall86 8y ago
Google Meet would basically not work for me until I enabled third-party cookies. Nobody could hear my audio.
TheRealPomax 8y ago
The immediate thought is "sites that rely on content being discussable" through things like disqus and the like (mostly because that covers one of my websites). The third party cookies allow for off-site autologins. Of course, allowing them also lets BS like facebook in so I'd love to see browser get built-in automatic third-party blocking with per-site whitelisting of 3rd party domains (I would love to auto-clear disqus on sites I actively use, but not on sites that happen to have it slapped onto a random 1 paragraph "news" item).
- welder 8y ago
  They fix this by opening a new window and having you login directly to Disqus.com so the cookie can be set. Disqus login still works with third-party cookies disabled... However, don't use Disqus because they inject vulnerable JavaScript onto the page from unvetted ad networks and inject their affiliate links into every external link on your page[1]. [1]: https://en.wikipedia.org/wiki/Disqus#Affiliate_links_and_third_party_scripts https://en.wikipedia.org/wiki/Disqus#Affiliate_links_and_thi...
mrweasel 8y ago
Some site uses a 3rd party service to "comply" with GDPR, these 3rd parties will have a pop up where you can disable tracking you don't want (even though it should be default of). I notice that at least a couple of these service simply won't work with 3rd-party cookie disable, so now you can get to content, because you can get past the privacy policy. It's a little retarded that you can't opt out of tracking, because you don't allow a known tracking technology.
KajMagnus 8y ago
Maybe this one? Embedded comments in an iframe, and if you login, there'll be a session cookie, in the iframe. There's no tracking — each blog has its own unique sub domain with unique cookies, and no cookies on the 2nd level domain. Still, disabling 3rd party cookies in Chrome seems to break login: https://www.kajmagnus.blog/new-embedded-comments https://www.kajmagnus.blog/new-embedded-comments (what happens if you try to post a comment. I think there'll be an error. I'm developing this b.t.w.)

jmspring 8y ago

I’ve had online bill pay sites - typically banks - fail with some tracker blocking enabled.

jiveturkey 8y ago
same. those all work for me now, though, since maybe 1 year ago.

sammacbeth_ 8y ago

Here are some examples: https://whotracks.me/blog/block-third-party-cookies.html https://whotracks.me/blog/block-third-party-cookies.html

Mithriil 8y ago

Do you use an add-on to block cookies? If not, how?

crtasm 8y ago
Firefox has an option for allowing third party cookies: always/from visited/never.
coolspot 8y ago
I also recommend Cookie AutoDelete for firefox[1] and Chrome[2]. 1 - https://addons.mozilla.org/en-US/firefox/addon/cookie-autodelete/ https://addons.mozilla.org/en-US/firefox/addon/cookie-autode... 2 - https://chrome.google.com/webstore/detail/cookie-autodelete/fhcgjolkccmbidfldomjliifgaodjagh https://chrome.google.com/webstore/detail/cookie-autodelete/...

joemccall86 8y ago

Google Meet would basically not work for me until I enabled third-party cookies. Nobody could hear my audio.

TheRealPomax 8y ago

The immediate thought is "sites that rely on content being discussable" through things like disqus and the like (mostly because that covers one of my websites). The third party cookies allow for off-site autologins. Of course, allowing them also lets BS like facebook in so I'd love to see browser get built-in automatic third-party blocking with per-site whitelisting of 3rd party domains (I would love to auto-clear disqus on sites I actively use, but not on sites that happen to have it slapped onto a random 1 paragraph "news" item).

welder 8y ago
They fix this by opening a new window and having you login directly to Disqus.com so the cookie can be set. Disqus login still works with third-party cookies disabled... However, don't use Disqus because they inject vulnerable JavaScript onto the page from unvetted ad networks and inject their affiliate links into every external link on your page[1]. [1]: https://en.wikipedia.org/wiki/Disqus#Affiliate_links_and_third_party_scripts https://en.wikipedia.org/wiki/Disqus#Affiliate_links_and_thi...

mrweasel 8y ago

Some site uses a 3rd party service to "comply" with GDPR, these 3rd parties will have a pop up where you can disable tracking you don't want (even though it should be default of). I notice that at least a couple of these service simply won't work with 3rd-party cookie disable, so now you can get to content, because you can get past the privacy policy. It's a little retarded that you can't opt out of tracking, because you don't allow a known tracking technology.

KajMagnus 8y ago

Maybe this one? Embedded comments in an iframe, and if you login, there'll be a session cookie, in the iframe. There's no tracking — each blog has its own unique sub domain with unique cookies, and no cookies on the 2nd level domain. Still, disabling 3rd party cookies in Chrome seems to break login: https://www.kajmagnus.blog/new-embedded-comments https://www.kajmagnus.blog/new-embedded-comments (what happens if you try to post a comment. I think there'll be an error. I'm developing this b.t.w.)