Run custom JavaScript on any website.

Latest Version

Version
3.4.10
Update
January 16, 2022
Size
572KiB
Developer
Category
Users
947
Rating
3.66667 ★
Manifest Version
2
Web Store Status
Languages Support
English (United States)
See more
Permissions
Storage
Http://*/
Https://*/
Tabs
See more

Custom JavaScript for Websites 3 Extension

Overview
Run custom JavaScript on any website.
Added remote uploading.

Run custom JavaScript on any website. Use this tool to inject custom JavaScript in any website.

Your scripts are kept by the Chrome sync API and applied across domain URLs. You can inject custom JavaScript based on domain or custom Regular Expression (since v3.1.1).

This extension supports dedicated tab to edit your codes since v2.5.1

You can use some built-in libraries such as
* jQuery 1.12.4
* jQuery 2.2.4
* jQuery 3.2.1
* Indefinite Observable 1.0.1
* MooTools 1.6.0

or/and your own external scripts.

Use cases:

* Site debugging (wrong list sort, etc.)
* Extract useful information from website, such as billings/orders metadata
* Hide annoying popups and Ads
* Custom UI
* Anything you can think of :)

New features:

Ace Editor (formating, highlight, undo/redo by hotkeys)
Draft auto save (so doesn't matter when you close the window without saving)
Hosts (websites) switch (you can browse customjs of other websites)
Include external script (eq. Underscore.js is cool)
Thanks to:

Ace - http://ace.c9.io/
Pure - http://purecss.io/
Read more

Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx","description":"Run custom JavaScript on any website.","version":"3.4.10","manifest_version":2,"name":"Custom JavaScript for Websites 3","short_name":"customjs3","author":"helene.ramirez37","minimum_chrome_version":"52.0.2743","icons":{"16":"icon-16.png","19":"icon-19.png","32":"icon-32.png","38":"icon-38.png","48":"icon-48.png","128":"icon-128.png"},"background":{"scripts":["background.js"],"persistent":false},"content_scripts":[{"all_frames":true,"js":["run.js"],"matches":[""]}],"web_accessible_resources":["*.css","base.js"],"browser_action":{"default_icon":"icon-48.png","default_popup":"popup.html"},"content_security_policy":"script-src 'self' 'unsafe-eval' https://*.googleapis.com https://gitcdn.link https://cdnjs.cloudflare.com; object-src 'self'","permissions":["storage","http://*/","https://*/","tabs"]}
Read more

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User reviews

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A. (ID: 0000005286a73800) Voted 1 ★ - Updated 05/19/2023 This is a bit suspicious. This is called "Custom JS for Websites 3", but it's exactly the same as "Custom Javascript for Website 2", which has more than 40000 users and originally published at https://chrome.google.com/webstore/detail/custom-javascript-for-web/ddbjnfjiigjmcpcpkmhogomapikjbjdk Also, the bugs present in v2, are still present in v3, at least in my case. Moreover in the extension description, all of the features you describe in the "New features" paragraph, were already present in version 2. I think this should be reported and I advise other users to now download this extension until further clarifications.

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Jovan Ralić (ID: 000000d5a4cb487c) Voted 5 ★ - Updated 02/28/2023 Great! Just wish it had a few more features.. This is one of 3 extensions that will sink my data to the account, so that it's available on my other machine. I have installed and tested ALL CSS and JS editors. Thank you!! Please, consider adding these features: - Add a tab for CSS - Apply CSS immediately - Dark mode - Option to move the window around and resize it, like this extension does: https://chrome.google.com/webstore/detail/live-editor-for-css-less/ifhikkcafabcgolfjegfcgloomalapol