How do I delete previously entered items from Google Chrome Omnibox?

You can do it like this:

• Use your arrow keys ↑↓ to navigate to the entry, then

  • On PC, use ShiftDel.

  • On a small Mac keyboard, use FnShiftDelete ⌫.

  • On a full Mac keyboard with numpad, you can just hit ShiftDelete ⌦.

The entry will disappear, but it might show up if you type another set of characters... Repeat it there.

A video demonstration shows how I clean the suggestions for the u character.

Unfortunately, the suggestion by Tom Wijsman does not work for me - the site continues to appear with a clock icon. I found a related question with an answer which fixed it for me, by obliterating the History Provider Cache file, which is located:

Mac OS X

~/Library/Application Support/Google/Chrome/Default/

Windows Vista:

%localappdata%\Google\Chrome\User Data\Default

If you want to keep your other history, you can search the History Provider Cache for the offending sites and remove them.

I would agree with Lid that Tom Wijsman's solution was not what fixed it for me. Lid's solution was closer, and one that I have tried several times but still could not get to work. I understand OP was looking to remove specific suggestions, but if you were in the same situation as I was (where I was unable to remove anything like that), the following should help you out.

I tried the keyboard shortcut deletes Tom Wijsman describes, clearing my entire history (since "Beginning of Time"), disabling syncing (in case the entries were stored in the cloud), disabling Omnibox History and Autofill specifically from syncing, clearing my synced data, uninstalling and reinstalling Chrome, and removing the History Provider Cache. None of these were removing the suggestions Chrome would give me based off my past brow

Instead of removing the History Provider Cache file, I actually had to remove the History file.

It's in the same path (Mac OS X /Library/Application Support/Google/Chrome/Default/ and on Windows I would assume C:\Users{username}\AppData\Local\Google\Chrome\User Data\Default as stated before).

I'm not sure why this was not being cleared out with the regular Chrome history clear. I noticed the file was 9.3MB.

I know of another way of getting rid of unwanted suggestions in the Omnibox, but it does require shutting off suggestions from logged history.

To do it, you type in chrome://flags and scroll down to Disable 'shortcuts' in the Omnibox and enable this.

There are also other options, such as the Use new scoring in HistoryQuickProvider, and Inline HistoryQuickProvider; however, I have not used these. I assume they would work, though.