Inject javascript in a given website.

Latest Version

Version
1.0.4
Update
August 21, 2014
Size
397KiB
Developer
Category
Users
4,000+
Rating
2.90909 ★
Manifest Version
2
Web Store Status
Languages Support
English
See more
Permissions
Tabs
Http://*/*
Https://*/*
ActiveTab
Storage
WebNavigation
See more

JavaScript Injector Extension

This chrome extension has the purpose of injecting Java Script into a target URL every time that page loads.

You can inject your favourite script to extend the page functionality.

Features
- Add urls with or without regular expressions
- Keep a list of your urls and edit your js code inline
- You can turn on/off the js code when you wish
- Search trough your URLs
Read more

Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 2, "name" : "JavaScript Injector", "short_name" : "Js Injector", "description" : "Inject javascript in a given website. ", "version" : "1.0.4", "browser_action" : { "default_icon" : "icon72.png", "default_title": "Activate Js Inject rules - Click to add a new rule" }, "permissions" : [ "tabs", "http://*/*", "https://*/*", "activeTab", "storage", "webNavigation" ], "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'", "icons" : { "16" : "icon16.png", "48" : "icon48.png", "128": "icon128.png" }, "options_page" : "options.html", "background" : { "scripts" : ["js/background.js"], "persistent": false }}
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How to download and manually install JavaScript Injector extension for Chrome

Looking for a way to install JavaScript Injector extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install JavaScript Injector extensions manually, this article outlines two simple methods to effortlessly install JavaScript Injector extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download JavaScript Injector extension and manually install through Drag &Drop

If you ever need to manually install a JavaScript Injector extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the JavaScript Injector Extension by clicking the "Download CRX" button on the website.

Look for the JavaScript Injector extension you wish to install. Go to the website and download the JavaScript Injector extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for JavaScript Injector extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the JavaScript Injector extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download JavaScript Injector extension for Chrome and install in Developer Mode

This is another method to install JavaScript Injector extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the JavaScript Injector extension file

Select and download the JavaScript Injector extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the JavaScript Injector extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your JavaScript Injector extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the JavaScript Injector extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install JavaScript Injector extension in 2 ways. We hope this guide proves helpful.

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User reviews

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killerbaru478 ! (ID: 000000494d3e68c8) Voted 5 ★ - Updated 07/19/2022 Simply amazing, the bad reviews seem by people that do not know how to use the plugin and/or read the help section :P

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Вадим Михеев (ID: 0000001e02c5f47b) Voted 5 ★ - Updated 12/07/2021 Всё заработало. Расширение - пушка! Без проблем вырезал надоедливую рекламу с сайта. Если хотите запускать скрипт на всём сайте, то используйте ссылку формата https://example.com/*

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Mark Buck (ID: 0000004c0712314d) Voted 5 ★ - Updated 07/28/2020 Not sure why it got poor reviews before, it's a very handy url filtered javascript injector that works just fine, better than most of the others as they run on all pages

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sooflein nielfoos (ID: 000000ef80594aad) Voted 5 ★ - Updated 02/09/2020 Thx a lot. At least someone created simple js injector!

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Lenin Zapata (ID: 000000c8e47587a9) Voted 5 ★ - Updated 11/20/2019 Of all those who installed this was the only one that SERVED! Thank you!!