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Recently when I enter a correct URL or click on a proper link I get a 400 Bad Request.

  • 1 reply
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  • Last reply by cor-el

FredBerney
FredBerney
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This issue just started about a week ago. I'll type in a url like usps.com or click on the same link in an email that I DID receive from the postal service and instead of going to the United States Postal Service I get a 400 BAD Request.

It started just being one or two web sites that this would happen. Now almost every website I try to browse get this message. I end up using Google Chrome and it works fine. Even pasting in web sites that I've typed into Firefox that give me an error on Firefox

Can anyone help? Thanks.

Fred

This issue just started about a week ago. I'll type in a url like usps.com or click on the same link in an email that I DID receive from the postal service and instead of going to the United States Postal Service I get a 400 BAD Request. It started just being one or two web sites that this would happen. Now almost every website I try to browse get this message. I end up using Google Chrome and it works fine. Even pasting in web sites that I've typed into Firefox that give me an error on Firefox Can anyone help? Thanks. Fred

All Replies (1)

cor-el
cor-el
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  • Top 10 Contributor
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This issue can be caused by corrupted cookies or blocked cookies.

  • check the permissions for the domain in the currently selected tab in "Tools -> Page Info -> Permissions"

You can remove all data stored in Firefox for a specific domain via "Forget About This Site" in the right-click context menu of an history entry ("History -> Show All History" or "View -> Sidebar -> History").

Using "Forget About This Site" will remove all data stored in Firefox for this domain like history and cookies and passwords and exceptions and cache, so be cautious. If you have a password or other data for that domain that you do not want to lose then make sure to backup this data or make a note.

You can't recover from this 'forget' unless you have a backup of involved files.

If you revisit a 'forgotten' website then data for that website will be saved once again.

If clearing cookies didn't help then it is possible that the cookies.sqlite file in the Firefox profile folder that stores the cookies got corrupted.

  • rename/remove cookies.sqlite (cookies.sqlite.old) and when present delete cookies.sqlite-shm and cookies.sqlite-wal in the Firefox profile folder with Firefox closed in case cookies.sqlite got corrupted.

You can use the button on the "Help -> More Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page (Root directory).