Problem with logging into the admin panel Wordpress 6.1 only in FF
Hello, I run a website based on Wordpress 6.1.1. Since the FF update to version 106.0, there is a problem with logging into the administration panel - 500 Internal Server Error is displayed. Of course, all plugins, website code, etc. have been checked by the developer. There is some conflict between FF and Wordpress and I have no idea how to solve it?
The problem ONLY occurs in Firefox - other browsers (Chrome, Edge, Safari on Mac) work.
Older version of FF for eg. 70.0.1 also works fine and does not cause an error.
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Try to click the Shield icon in the URL bar and clear cookies and site data for that website.
You can check for issues with Total Cookie Protection.
- https://support.mozilla.org/en-US/kb/total-cookie-protection-and-website-breakage-faq
- https://support.mozilla.org/en-US/kb/introducing-total-cookie-protection-standard-mode
If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, DuckDuckGo PE, Disconnect, Ghostery, Privacy Badger, uBlock Origin) always make sure such extensions do not block content.
- make sure your extensions and filters are updated to the latest version
- https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems
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Thanks for all the suggestions, unfortunately they don't solve the problem. Website login does not work on any computer with FF browser and versions from 106.0 and above. The entire website works flawlessly, only when the login script is run or the password is recovered, it throws a 500 error. Website address https://diecezja-pelplin.pl/ Admin login address https://diecezja-pelplin.pl/wp-login.php - and here is error 500
Oupsss, i can see that. HTTP3 issue.
Enter about:config in the address bar and set network.http.http3.enable = false.
TyDraniu powiedział
Oupsss, i can see that. HTTP3 issue. Enter about:config in the address bar and set network.http.http3.enable = false.
Thank you TyDraniu, the site started working after set network.http.http3.enable = false. However, the solution is ad hoc, as it is difficult to force other users to change the parameter in their browsers. Is there any other solution? Force script on the server to disable HTTP3 support?