Installed extension doesn't show up

I installed this extension on Chrome.

I want to uninstall it, but I can't seem to find it on the extensions page.
Note that in Chrome app market, the app shows the installation button as available, but when clicked I see this error: An error has occurred - This item is already being downloaded and added into Chrome.

I tried restarting Chrome but that didn't help.
Is there a way to remove the extension via Windows Explorer etc.

Shimmy

Posted 2014-11-05T04:02:51.963

Reputation: 2 435

I have the same problem and i cannot even install extensions on a fresh profile, the chrome store always says "installation is not enabled". Possibly it started with a update from 55.0.2883.75-3 to 55.0.2883.75-6 (debian) – allo – 2017-02-07T08:53:32.097

@allo – This is Debian bug 852398. Launching with chromium --enable-remote-extensions worked for me just now (using chromium 57.0.2987.98-1), but others haven't been able to get it working (see bug link).

– Adam Katz – 2017-03-15T22:19:24.570

Answers

Okey. I find solution.

If you login in Chrome -> logout.
Go to %LocalAppData%\Google\Chrome\User Data\Default\Extensions and delete extension folder
Go to %LocalAppData%\Google\Chrome\User Data\Default\Local Extension Settings and delete extension folder
Restart Chrome
Sign in
...Done!

DarkKain Dkk

Posted 2014-11-05T04:02:51.963

Reputation: 26

Any idea where the data folders are in Mac OS X? – Vince Kronlein – 2015-06-29T17:41:05.387

On OS X, it's in ~/Library/Application Support/Google/Chrome/. On Linux, both directories live in ~/.config/google-chrome/Default/ (or, if you use chromium, ~/.config/chromium/Default). See also Where is the Chrome settings file?

– Adam Katz – 2017-03-15T21:39:41.467

Enter chrome://flags/ into your address bar
Change Enable Enhanced Bookmarks to disabled
Click Relaunch Chrome button at the bottom

You should now be able to install the extension again

bones1618

Posted 2014-11-05T04:02:51.963

Reputation: 51

3For me it was called "Managed bookmarks for supervised users" but I enabled that and it worked like a charm. Thanks – neXus – 2016-06-27T19:06:23.937

Enabling "Managed bookmarks for supervised users" worked for me too! Thanks! – Bruno Serrano – 2017-06-30T16:33:28.203

1"Managed bookmarks for supervised users" did not work for me – JinSnow – 2017-06-30T16:34:34.877

In Chrome 75 on PC, I could not find any flags (options) with the search terms "bookmarks" or "extensions". – Ryan – 2019-07-28T15:08:28.600

For Chrome 75 in 2019:

The official documentation says

Arrange on your toolbar

To the right of your address bar, look for your extensions' icons.

On your computer, open Chrome.

Drag the extension's icon to its new place.

Hide extensions

To hide extensions, click the right side of your address bar and drag it to the right.

To hide individual extensions, right-click the icon and select Hide in Chrome Menu.

To see your hidden extensions, click More ⫶.

Show extensions

To show extensions you've hidden, click the right side of your address bar and drag it to the left.

To bring hidden extensions back to your toolbar, click More ⫶. Right-click the extension's icons, and select Show in toolbar.

Some extensions don't have this option.

_{P.S. For days, my LastPass extension wouldn't appear in the toolbar or in the hidden area. I couldn't find it anywhere, even after visiting chrome://extensions/ and disabling and then re-enabling it. What finally fixed it was disabling all of my extensions, then enabling just LastPass. Then it appeared. Then I was able to re-enable other extensions.}

Ryan

Posted 2014-11-05T04:02:51.963

Reputation: 959

1You saved me! I started disabling all of my extensions, but after just disabling a few they all showed up again! – weirdalsuperfan – 2019-08-03T06:54:26.230

If you're sure that the extension doesn't show up in Settings>Extensions:

The default location for all Chrome extensions is

C:\Users\<username>\AppData\Local\Google\Chrome\User Data\Default\Extensions

When you navigate there, you'll find that all the folder names are cryptic, so you'll have to isolate the particular extension either by Date Modified, or by clicking in each folder and comparing the version number to the version number of the extension (find via the extension's page on Chrome Store).

To remove the extension just delete the particular folder, and restart Chrome.

Rsya Studios

Posted 2014-11-05T04:02:51.963

Reputation: 3 160

1Nops. I erased the folder and restarted Chrome, but the issue still persists. – Shimmy – 2014-11-05T07:15:13.913

@Shimmy What issue still persists? Do you mean that you can't install it again? Are you sure you deleted the right folder? – Rsya Studios – 2014-11-05T07:49:38.543

I copied the part of the app ID from its address on the store, searched for the folder at the path in your answer, closed erased that folder, restarted Chrome, and I'm facing the same issue described in the answer. – Shimmy – 2014-11-06T07:08:21.550

@Shimmy So the dialogue box still says: This item is already being added into Chrome? Check if it is still listed in chrome://extensions. Delete your cache and other settings https://support.google.com/chrome/answer/95582 and if that doesn't work, reset the browser settings https://support.google.com/chrome/answer/3296214

– Rsya Studios – 2014-11-06T07:29:30.700

-1

This looks like running chrome process is in some messed up state.

Windows Solution Go to 'Task Manager' & kill all 'chrome.exe' process by clicking 'End Process'

Unix based platform Find list of process ids for chrome using 'ps -eaf' & use 'kill -9' to use kill those process.

This will close active window. So, restart chrome. Hopefully, problem solved.

Nepz Solutions

Posted 2014-11-05T04:02:51.963

Reputation: 1

OP: "I tried restarting Chrome but that didn't help." – Ƭᴇcʜιᴇ007 – 2016-07-03T14:59:57.177