CheckMyHTTPS ensures that your HTTPS connections are not hijacked and therefore not listened to.

Latest Version

Version
5.7.0
Update
May 9, 2023
Size
75.92KiB
Developer
Category
Users
614
Rating
4.25 ★
Manifest Version
2
Web Store Status
Languages Support
English
Français
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Permissions
Downloads
NativeMessaging
Notifications
Storage
Tabs
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CheckMyHTTPS Extension

CheckMyHTTPS ensures that your secured WEB connections ('HTTPS' protocol) are not intercepted (neither decrypted, nor listened, nor modified).

When browsing on secured sites (\"https://...\" sites), you can check the security status by clicking on the extension icon (check).
- The icon is green: your connection is not compromised
- The icon is red: your connection is considered very risky (hijacked, modified, listened)

Technical details:
Normally, before encrypting an HTTPS connection, a secure website must prove its identity to your browser by sending it its security certificate. This certificate can be considered as an identity card issued by higher authorities (Certificate Authorities). There are several techniques of usurpation based on false certificates (false identity cards) or homographers (false names) to make you believe that a \"pirate\" site is the legitimate site you think you are visiting. These techniques allow pirate sites to retrieve your private information.
CheckMyHTTPS allows you to detect this type of practice, which can be implemented on open WI-FI access points (hotels, conference centres, stations, etc.) or even within your company via its outband firewall (SSL inspection). To detect this, the extension compares the certificate of the visited site that is received by your browser with the same certificate retrieved by an external \"verification server\" located on the Internet. If the certificates differ, the identity of the server can be considered as usurped (red icon).

Respect for privacy?
The CheckMyHTTPS extension requires only two parameters : The name of the visited website and the certificate received from it;
The external \"verification server\" only receives the name of the visited website. If you want, you can make this \"verification server\" yourself.

All explanations are detailed on the project website: https://checkmyhttps.net.
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Source Manifest.json

{ "background": { "page": "background.html" }, "browser_action": { "browser_style": false, "default_icon": { "128": "images/icon.png" } }, "default_locale": "en", "description": "__MSG_extensionDescription__", "icons": { "128": "images/icon.png" }, "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnaqK/LcMIdkzflE6LlaKskw1tESqq3NhJhyQr923GMzn7dXeF3f1cXTHdqfG/eOVsd+dLc3YB3GBKBsRnWi4tqX09ZAejgBoL5YJfQyR9ZAORZsCRN7cViL/Gp9hNz8kPWipjhf90pwaDeTsk9ClJHOjwShC2R1VVog67QMelKtuRQgsi9IDTbU+pL27HCflBgsVN9rI0On/4cezzFh6wvB0/N2EEdywQXTbGvSH1bXssHVcJvjtNLtDfE56kzsNjAb6DpHXOEoTHpmkTqibMuqTh/wpFvQ1G225+CJIn7OG1yiGnfxzhaZwjLs4U0ElBdFHUuDSkcltvMqFs0IkGwIDAQAB", "manifest_version": 2, "name": "CheckMyHTTPS", "options_ui": { "browser_style": true, "open_in_tab": false, "page": "options/options.html" }, "permissions": [ "downloads", "nativeMessaging", "notifications", "storage", "tabs" ], "update_url": "https://clients2.google.com/service/update2/crx", "version": "5.7.0"}
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How to download and manually install CheckMyHTTPS extension for Chrome

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

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

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

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

This is another method to install CheckMyHTTPS 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 CheckMyHTTPS extension file

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

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User reviews

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Mohamed Anjum (ID: 000000c6402ed8dd) Voted 5 ★ - Updated 11/12/2021 Installed on my Laptop since I use it out with public hotspots. Works well. (12/11/2021)

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Eric Hidle (ID: 0000003f2393841a) Voted 2 ★ - Updated 01/30/2019 Requires installing Python, which a user who is likely to be subject to SSL MITM attacks (for example in the workplace) is also likely not going to have administrative permissions or the ability to install it. The addon should be completely self-contained and not require elevated user privileges to install.