What is Chrome Developer mode?

Google Chrome developer mode basically offers a way or mechanism for developing, debugging, testing, and customization of the extensions for chrome browser. The chrome users also use it as a backdoor tool to install extensions that are unpacked for Chrome browser. Chrome does not offer any other way to allow installation of extensions that are not available on its official Web store.

How to install Addoncrop extensions for my browser?

Watch 30 seconds video tutorial here on the topic.

How to disable developer mode warning for Chrome browser?

Yes, you are right. Having popped up developer mode warning every time on starting your browser is as much annoying as Hell!

To disable developer mode warning, please read the detailed Tutorial here.

Why browser returns error “Extension’s manifest file is missing or unreadable“

It is something that commonly happens if you select a wrong folder or accidently delete the manifest file of the extension or do not name it properly or have changed the format of the file. Double check the extension folder to make sure that source files of the extensions are present else download the latest version of the extension and install it again for your browser.

How to delete or uninstall the Addoncrop’s extension ?

Typically, you can delete or uninstall a Google Chrome or Opera extension by simply typing Chrome://extensions in the address bar of the browser and it will do the trick for you. Alternatively, you can also do it through the Customize and Control settings page of the browser. The process is extremely easy, you just have to follow the below given steps:

1. Locate and click on the menu icon on your Browser Toolbar and then go to “More Tools”.
2. Select the “Extensions” among the listed options under “More Tools” menu.
3. Click on to the trash icon to remove the icon from your browser. You can find it right in front of the name of the extension you want to remove from your browser.

How can I update extension for my browser if new version is available?

Just follow the below easy steps in order to update the extension to latest available version on Addoncrop.com.

– Open page chrome://extensions/
– Remove old version of the extension from your browser and you may also delete folder containing setup files of the extension.
– Download latest version of the extension from Addoncrop.com.
– Extract or unpack the setup files in to a folder from the .zip file.
– Install latest version using the developer mode method for installation of the extensions for Chrome browser.

The browser Extension is not working properly or has suddenly stopped working?

There are some users who try to install an extension again that already configured for their browsers. It results in abnormal working of the already installed extension. If you have downloaded the extension from Addoncrop.com then ensure that it is enabled in extension settings after you complete installation for it. You can check the setting for it by visiting the page Chrome://extensions/ for Chrome and about:addons for firefox. If it is not enabled, then enable it to start using it.
Please also ensure that you have installed the latest version of the extension for browser.

If you have enabled the extension and still it does not work properly, Please contact our support team. We will help you immediately to resolve the issue and fix bugs if there are any.

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57 Comments on "Troubleshoot Addoncrop’s Browser Addons"

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Mats J
Guest

“videoplayback” is all I see. Just installed it, and yes it’s in developer mode.It’s broken.

Browser Name
Chrome
jorge
Guest

no me aparece el voto de mp3 y no puedo descargar la cancion

Browser Name
Chrome
Anwar
Guest

i have installed the You Tube downloader extension. it works when first installed but stops working when i close the chrome browser & reopen the browser again and get the below message when i select the arrow in the browser

Your file was not found
It may have been moved or deleted.
ERR_FILE_NOT_FOUND

Browser Name
Chrome
Mario
Guest

Download of mp3’s don’t works

Browser Name
Chrome
Andrew
Guest

It didn’t work for me at first, I got an error for ‘Failed to load extension from Localization used, but default_locale wasn’t specified in the manifest.’

I deleted the folder ‘_locales’ from the installation folder and tried again, this time it worked.

Browser Name
Chrome
Clarence
Guest

HI just installed the mp 3 extension and it works pretty good however when I transfer the music
to I tunes for download to my I phone they wont accept it ?.Is the extension not compatible ?
If not can you recommend another extension.
Regards Clarence

Browser Name
Other
Al rome
Guest

Whenever i choose the download mp3 button it opens a ConverMP3.io thing and no download happens… please help

Browser Name
Chrome
ADEM
Guest
Hi, I’m trying to disable “developer mode warning” but when i run the bat file, it errors. The error: The term ‘C:UsersAZ40EB~1.SAppDataLocalTempDevWarningPatch.ps1’ is not re cognized as the name of a cmdlet, function, script file, or operable program. C heck the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:59 + C:UsersAZ40EB~1.SAppDataLocalTempDevWarningPatch.ps1 <<<< 'C:UsersA. Z.SDesktop ' '' + CategoryInfo : ObjectNotFound: (C:UsersAZ40EB…arningPatch.p s1:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException I copied the red error part. My username is A.Z.S
Browser Name
Chrome
William Solberg
Guest

Where can i select the save location of the files im downloading?

Browser Name
Chrome
pro user
Guest
Hi, Thanks for these amazing useful extensions. i know google isnt happy with your works, BUT it dosnt CAREE !! because the USERS are so much HAPPY with that ! )) google owners are such a Selfish+Brainless creatures WHOSE wonts to making works easier for users. Suggestions : 1- making chrome full backup { or at least Extensions+settings } on Local computers. google Sync was a useless+Sh!t for me, it recovered just only some incomplete Bookmarks for me ! )) im using “GoodSync” application for now, but im not sure to chrome will be working to good by replacing user… Read more »
Tariqul Islam Jewel
Guest

u r to good

Able
Guest

Drag and dropped ext from this site with developer moded checked…looked good then after a few minutes chrome? flashed a box saying not approved. Tried checking unchecking dev box, no change, it would not let me check the use box for the ext. Used to work great so I think google is making their own fix to prevent its uses. Any thoughts…did a reinstall etc, repeatable events. Thanks

sneha
Guest

i had problem but i saw the extensions it waas disabled now its working i click enable

Marilyn
Guest

I solved it. There were two folders with same name. So I went back in and selected the other one. It’s working now! Woohoo!

alexanderaex1
Guest

nice axtensiom

ANTHONY XPRESSIONS
Guest

EXCELENTE WEB

Rod Sims
Guest

if you get the warning on developer mode, just ignore it, it means nothing, As long as when you start Chrome, you just cancel the warning message that is caused by the video downloader in developer mode. It’s better than not having the superb extension at all, so just ignore it. everything works fine, just ignore the messages and enjoy the extension.

Browser Name
Chrome
unclesporkums
Guest

I was trying to install the video downloader in chrome in “developer mode” and I received an error message that the manifest file was unreadable. Please help.

khizar
Guest

Much more appreciated.
Thanks!

aziz
Guest

Great program. Works as designed.