Checks for window.opener vulnerabilities as you browse.

Latest Version

Version
1.0.0
Update
September 3, 2017
Size
29.94KiB
Developer
Category
Users
76
Rating
5 ★
Manifest Version
2
Web Store Status
Languages Support
English
See more
Permissions
Storage
See more

Opener Detector Extension

A simple browser extension which checks for window.opener vulnerabilities as you browse. When it finds one, it shows a warning page in the vulnerable tab, so that you can report or fix the vulnerability. (Use the back button to return to the page.) Individual pages and whole domains can be added to an ignore list, and by default, vulnerabilities between pages of the same origin (e.g. https://example.com/foo.html and https://example.com/bar.html) are not reported, though this can be changed in the settings.

window.opener vulnerabilities allow Web pages to control the tab which opened them. They can be fixed on many browsers simply by adding rel=noopener to your links. For more details, check out Mathias Bynens' article (https://mathiasbynens.github.io/rel-noopener/).

Please use responsibly. Disclose vulnerabilities you find, or fix them. Keep your hat white.

Source code is available on GitHub (https://github.com/HarryCutts/opener-detector), under the 3-clause BSD license. Contributions welcome!
Read more

Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx","manifest_version": 2,"name": "Opener Detector","version": "1.0.0","description": "Checks for window.opener vulnerabilities as you browse.","homepage_url": "https://github.com/HarryCutts/opener-detector","icons": {"48": "icons/icon.png","96": "icons/[email protected]"},"permissions": ["storage"],"options_ui": {"page": "options.html"},"content_scripts": [{"matches": [""],"js": ["lib/browser-polyfill.min.js","config.js","check.js"]}],"web_accessible_resources": ["vuln_report_page.html"]}
Read more

How to download and manually install Opener Detector extension for Chrome

Looking for a way to install Opener Detector 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 Opener Detector extensions manually, this article outlines two simple methods to effortlessly install Opener Detector extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Opener Detector extension and manually install through Drag &Drop

If you ever need to manually install a Opener Detector 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 Opener Detector Extension by clicking the "Download CRX" button on the website.

Look for the Opener Detector extension you wish to install. Go to the website and download the Opener Detector extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Opener Detector 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 Opener Detector 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 Opener Detector extension for Chrome and install in Developer Mode

This is another method to install Opener Detector 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 Opener Detector extension file

Select and download the Opener Detector 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 Opener Detector 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 Opener Detector 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 Opener Detector 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 Opener Detector extension in 2 ways. We hope this guide proves helpful.

Similar Extensions

icon

Check for .git directory existence Extension · Developer Tools 76 0 ★ 49.98KiB

icon

Scripter debugger extension Extension · Developer Tools 76 2 ★ 1.04MiB

icon

PERS - The Passive Expired Resource Scanner Extension · Developer Tools 76 0 ★ 695KiB

icon

captureCalls Extension · Developer Tools 76 1 ★ 9.63KiB

icon

DOM-JSON Tree Matcher Extension · Developer Tools 76 0 ★ 18.58KiB

icon

Investigate with Lacework Extension · Productivity 76 0 ★ 17.45KiB

icon

PhishBlock Extension · Productivity 76 1 ★ 45.73KiB

icon

Plugin Vulnerabilities Extension · Developer Tools 76 1 ★ 9.98KiB

icon

No Opener, No Phishers Extension · Developer Tools 76 9 ★ 274KiB

icon

Privacy Crawler Extension · Developer Tools 76 0 ★ 29.74KiB

icon

Ignore Google Scripts Extension · Productivity 76 3 ★ 18.68KiB

icon

Site Bleacher Extension · Productivity 76 3 ★ 23.54KiB

icon

Not my department Extension · Developer Tools 76 1 ★ 1.44MiB

icon

DOM to JSON Selector Extension · Developer Tools 76 0 ★ 48.55KiB

icon

Lyra Extension · Developer Tools 76 0 ★ 1.16MiB

icon

Block Unreachable Scripts Extension · Productivity 76 6 ★ 11.06KiB

icon

LL Developer Tools Extension · Developer Tools 76 1 ★ 98.88KiB

icon

Policy Control Extension · Productivity 76 3 ★ 48.47KiB

icon

Git Mining Extension · Productivity 76 4 ★ 211KiB

icon

Origin Requests Only (Firewall) Extension · Productivity 76 12 ★ 102KiB

icon

Perceptual image analysis Extension · Productivity 76 1 ★ 78.98KiB

icon

LiveScriptConsole Extension · Developer Tools 76 2 ★ 388KiB

icon

Cyber Web Tools Extension · Developer Tools 76 6 ★ 340KiB

icon

JS Vulnerability Detector Extension · Developer Tools 76 1 ★ 459KiB