Cannot log in to Facebook
Since I switched my main browser to FireFox, I cannot log in to my Facebook account. It said
Access blocked: This app's request is invalid
You can't sign in because this app sent an invalid request. You can try again later, or contact the developer about this issue. Learn more about this error If you are a developer of this app, see error details. Error 400: redirect_uri_mismatch
Is there anything in the setting I could change to log in to my account here?
所有回复 (3)
Hi,
Sorry you experience that. Here are some standard troubleshooting steps that may resolve the issue:
- Please check if you have Enhanced Tracking Protection (ETP) enabled. You can do that by clicking the shield
icon in the left part of the address bar.
- If ETP is enabled, try disabling it.
- If the problem is not fixed, try clearing Firefox cache.
- If it does not help, try clearing cookies and data for the website you experience troubles with (warning: you will be logged out on this website).
- If it also does not help, try running Firefox in Troubleshoot Mode. If the problem doesn't persist, please follow the steps from this article to troubleshoot further.
Does any of the above help? Looking forward to your update on how it goes!
Nothing helps TT. What should I do next?
If nothing from the above helps, try creating a new Firefox profile and check if the issue persists there. If it doesn't, you can start copying files from your old profile to the new one to identify which one causes the issue. See this article on what files to copy.