Delete the entry from the auto complete. Remove websites from the address bar suggestions

thanx guigs2 i have deleted history and url a lot of time. i think some problem is with ctrl+enter bec its not happning for some specific sites but all sites even i have opened it earlier of not.

@attique, I understand that it also happens with specific sites where it goes to an assigned search engine. Do you have keywords or any add ons that may change the search? If so see: What to do when searches take you to the wrong search website

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