Installing a Chrome Extension Without An Internet Connection

calendarNovember 15, 2017 in Chrome , HttpWatch

Occasionally, our customers run into a problem when installing HttpWatch on a PC or server that has no internet access, e.g. to test web servers in a locked down production environment. The HttpWatch add-on for Internet Explorer installs and works correctly but the HttpWatch Chrome extension is not added because access to the Google Web Store is required for automatic installation.

Without an internet connection the HttpWatch Chrome extension has to be manually added using the steps shown in this blog post. Although the details below relate to HttpWatch, the same technique can be used to install any Chrome extension to an offline PC.

Step #1 – Download the Chrome Extension’s CRX file

Chrome extensions are packaged in CRX files and they can be manually downloaded from the Google Web Store. You’ll need to do that on another PC that is connected to the internet by either using a Google Chrome extension like the Chrome extension source viewer or by using the following download URL:

https://clients2.google.com/service/update2/crx?response=redirect&prodversion=62&x=id%3Ddajhhgiioackgdldomhppobgjbinhimh%26uc

(Download using a different browser as Chrome will block an attempt to access a CRX file.)

The general form of this download URL is:

https://clients2.google.com/service/update2/crx?response=redirect&prodversion=[PRODVERSION]&x=id%3D[EXTENSIONID]%26uc

Where [PRODVERSION] is the version of Chrome you’re using and [EXTENSIONID] is the extension ID. You can find the ID by looking at the extension in the Web Store and noting the last part of the URL. For example, the ID of the HttpWatch extension is ‘dajhhgiioackgdldomhppobgjbinhimh’:

Step #2 – Add the CRX file to Chrome

Copy the CRX file to the offline PC and then open the Chrome extensions page (chrome:://extensions). Drag and drop the CRX file onto the extensions page to manually add the extension to Chrome:

After clicking ‘Add Extension’ the HttpWatch extension will be available in Chrome:

The extension is now fully installed and available for use. Of course, you will not receive automatic updates to the extension unless you connect to the internet or repeat steps 1) and 2).

HttpWatch iOS App Now Supports Password Managers and other App Extensions

calendarAugust 9, 2017 in HttpWatch , iOS , iPad , iPhone

The latest update (version 11.0.15) of the HttpWatch iOS app has a new share sheet that can be opened from the browser window:

The top row of icons allow sharing the current URL with standard apps such as Mail and iMessage while the bottom row includes built-in actions and extensions from other apps:

If you already use a password manager app such as 1Password or Roboform you can now use it to fill in user names and passwords on web pages within the HttpWatch app. The 1Password app also supports filling in identity information such as name, address, credit card details, etc:

Other apps such as certificate checkers can also be used from the share sheet and we’ve included several built-in actions such as Reset Browser, Clear Cache and Open in Safari.

By selecting More… you can control which actions appear and their order in the share sheet:

SSLRobot: A Free SSL/TLS Test Tool for HttpWatch Customers

calendarJanuary 19, 2017 in HTTPS , HttpWatch , Security , SSL , SSLRobot

HttpWatch shows a summary of the SSL connections used for HTTPS requests:

HttpWatch SSL Tab

While this information is useful, our customers have asked for more detail about certificates, protocol versions and other aspects of the server’s configuration. There are online SSL tools that can do this but tests are often slow and cannot be used to investigate servers on local networks or in test environments.

To address these issues we have developed SSLRobot – a desktop (Mac and PC) based SSL scanning tool that quickly checks secure servers:

SSLRobot

The tool highlights possible configuration issues that could compromise the security of a secure web server:

SSL Protocol Checking

We’ve integrated this tool directly into HttpWatch (version 1.0.56+) so you can start a check from the SSL tab or URL context menu:

SSLRobot Integration

If you have a license for the current version of HttpWatch Professional you can request a free license key for SSLRobot by visiting the following page:

https://store.httpwatch.com/free-sslrobot-license/

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