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Firefox keeps automatically blocking specific previously removed cookie

  • 3 replies
  • 4 have this problem
  • 2 views
  • Last reply by cor-el

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Firefox keeps blocking a certain website's cookies, even when I make it an allowed exception. If I wait a few seconds Firefox just changes the status to blocked. I thought it might have something to do with Network.cookie.blockFutureCookies but creating and setting this parameter to false has done nothing. How do I keep Firefox from blocking cookies automatically?

I have everything set to accept all cookies and no cookie add-ons, I really have no idea why Firefox doesn't like this cookie. :(

Firefox keeps blocking a certain website's cookies, even when I make it an allowed exception. If I wait a few seconds Firefox just changes the status to blocked. I thought it might have something to do with Network.cookie.blockFutureCookies but creating and setting this parameter to false has done nothing. How do I keep Firefox from blocking cookies automatically? I have everything set to accept all cookies and no cookie add-ons, I really have no idea why Firefox doesn't like this cookie. :(

All Replies (3)

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Try to clear the "Site Preferences"

Note that clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords.


Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do not click the Reset button on the Safe mode start window or otherwise make changes.

If clearing cookies doesn't work then it is possible that the file cookies.sqlite that stores the cookies is corrupted.

Rename (or delete) cookies.sqlite (cookies.sqlite.old) and delete other present cookie files like cookies.sqlite-journal in the Firefox Profile Folder in case the file cookies.sqlite got corrupted.

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It was a Site Preference the whole time...

Well, thank you! :)

To be clear, clearing my site preferences fixed things immediately. Didn't even have to delete any cookies.

This picture is for you.

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You're welcome.

There may have been a, possibly hidden, block exception.