what is and how to fix 400 Bad Request no host header defined?
I am unable to access to a lot of websites except for Google, Youtube and this. I've tried clearing all cookies and reloading my browers, but it doesn't work :(
I am unable to access to a lot of websites except for Google, Youtube and this. I've tried clearing all cookies and reloading my browers, but it doesn't work :(
การตอบกลับทั้งหมด (1)
If clearing cookies didn't help then it is possible that the cookies.sqlite file that stores the cookies got corrupted.
- Rename (or delete) cookies.sqlite (cookies.sqlite.old) and delete other present cookies files like cookies.sqlite-journal in the Firefox profile folder in case the file cookies.sqlite got corrupted.
You can use this button to go to the currently used Firefox profile folder:
- Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
- http://kb.mozillazine.org/Profile_folder_-_Firefox
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
- https://support.mozilla.org/kb/Safe+Mode
- https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
Also make sure that security software isn't blocking cookies.
Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test.