Description

adamhotep

opened on Jul 17, 2018

Issue body actions

I get cookies is undefined and Unchecked lastError value: Error: First-Party Isolation is enabled, but the required 'firstPartyDomain' attribute was not set when running a GM userscript calling GM.xmlHttpRequest() with privacy.firstparty.isolate (First-Party Isolation) enabled (set to true):

For now, this means I'm disabling First-Party Isolation, but I'm hoping there's a solution or workaround that will make this work better.

In the event it matters (it shouldn't, I'm on FF 61), I have followed the ghacks workaround to explicitly allow GM to set cookies.

Reacted by Cerberus-tm, buergi and Dale

Activity

1. eternal-sorrow commented on Nov 4, 2018

   

   eternal-sorrow

   on Nov 4, 2018

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   Any updates on this?

   Reacted by Cerberus-tm, Adam Katz, buergi, Romain D. and Honda XL600V Transalp
2. adamhotep commented on Nov 28, 2018

   

   adamhotep

   on Nov 28, 2018

   Author

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   No updates that I'm aware of, @eternal-sorrow. I still experience this problem when privacy.firstparty.isolate is set to true, regardless of the value of its companion setting privacy.firstparty.isolate.restrict_opener_access (now on Firefox 63.0.1).
3. arantius

   added

   bankruptcyIssues that have been closed for "bug bankruptcy". Usually very old non-active issues.Issues that have been closed for "bug bankruptcy". Usually very old non-active issues.

   on Nov 2, 2023
4. arantius

   closed this as completedon Nov 2, 2023
5. arantius

   removed

   bankruptcyIssues that have been closed for "bug bankruptcy". Usually very old non-active issues.Issues that have been closed for "bug bankruptcy". Usually very old non-active issues.

   on May 12, 2026
6. arantius

   added this to the 4.14 milestone on May 12, 2026
7. arantius

   reopened this on May 12, 2026
8. arantius

   added a commit that references this issue on May 12, 2026

   Merge pull request #3220 from Scripter17/fix-firstparty-isolate

   This issue will close once commit e181d81 is merged into the 'master' branch.

   e181d81
9. arantius

   closed this as completedin #3220on May 12, 2026
10. eternal-sorrow commented on May 12, 2026

    

    eternal-sorrow

    on May 12, 2026

    More actions

    Welp, I use neither First-Party Isolation nor Greasemonkey anymore, but hey, better late than never...

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