A specific set of settings is required to enable each of the supported browsers for test recording and execution with Test Studio Dev and this is called Browser Calibration. Some of the browsers also require the installation of an extension.
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We call that the browser is calibrated when the required settings are applied. Test Studio Dev provides a built-in configuration approach which will set all necessary settings for the supported browsers out of the box and no manual interaction is required. To use our built-in feature open the Test Studio Dev Settings window and switch to its Browser tab.

In the Browser tab are listed the installed browsers on the current machine with a Calibrate/Restore button next to each. If a browser is successfully calibrated the button allows you to restore its previous settings.

If a browser is not yet configured the button allows you to calibrate it.

Note!
During browser calibration Test Studio Dev automatically closes all currently running browser instances. Ensure there is no important information you might lose if browser gets closed before proceeding with calibration
Tip
You can check all settings applied from the calibration in the Manual Configuration section below (click the + sign to expand it).
Once Chrome and Edge Chromium browsers are calibrated you can continue with recording and executing the automated tests.
By default Test Studio Dev projects are set to use Chrome and Edge Chromium without extension. Along with that, there is the option to run these two browsers automation with the help of an extension. The Progress Telerik Test Studio Extension is officially distributed in the Chrome web store and is available for download and installation (Edge Chromium supports adding extensions from the Chrome store).
If you choose to use Chrome for recording and execution with the extension, you need to change a setting in the Test Studio Dev project. The project setting is listed under the Browsers tab and is named Use browser extension(Chrome/Edge Chromium). This option is disabled by default, but you can check the checkbox to set Test Studio Dev to start the Chrome/Edge Chromium browser for this project with the extensions.

Firefox browser requires an extension for the purposes of automation testing with Test Studio Dev.
The Firefox extension can be found in the Firefox Add-ons Page - Progress Test Studio Extension.
If your Chrome browser has an active Google Apps session (for example, you are logged into GMail), automatic calibration will not work as expected. To use automatic configuration, log out of your Google account first.
You can check all settings applied from the calibration in the Manual Configuration section below (click the + sign to expand it).
Manual Configuration +
1. Click on

located in the upper right corner of the browser
More tools > Extensions.
2. Ensure that the
Progress Test Studio Extension is enabled.
1. Click on

in the upper right corner.
2. Use the plus (+) and minus (-) buttons next to
Zoom to set it to 100% (or use the keyboard shortcut: Ctrl + 0).
1. Click on

in the upper right corner.
2. Select
Settings from the drop-down menu.
3. Scroll to the bottom and click
Advanced.
4. Locate the
Downloads section.
5. Enable
Ask where to save each file before downloading.
1. Click on

in the upper right corner.
2. Select
Settings from the drop-down menu.
3. Scroll to the bottom and click
Advanced.
4. Locate the
Privacy and security section.
5. Click
Content Settings.

6. Under
Popups section enable
Allowed.
1. Click on

in the upper right corner.
2. Select
Settings from the drop-down menu.
3. Scroll to the bottom and click
Advanced.
4. Locate the
Privacy and security section.
5. Click
Content Settings.
6. Under
JavaScript enable
Allowed.
1. Click on

in the upper right corner
Settings > Advanced > Privacy and security > Content Settings > Cookies .
2. Enable
Allow sites to save and read cookie data (recommended).
3. Disable
Block third-party cookies.
1. Click on

in the upper right corner
> Settings > Advanced > Privacy and security > Content Settings.
2. Under
Automatic Downloads section enable
Allow all sites to download multiple files automatically .
1. Open the Default Chrome User data folder under the your Windows account - "C:\Users\[WindowsUser]\AppData\Local\Google\Chrome\User Data\Default" and locate the Preferences file.
2. Open it with a text editor and search for "webkit". If there is no such preference in the file, add the following at the bottom of the file:
"webkit":{"webprefs":{"web_security_enabled":false}}
If the "webkit" preference already exists in the Preferences file and has any value in the "webprefs", you can add the web security as follows:
Existing values listed in the file:
"webkit":{"webprefs":{"minimum_font_size":6}}
The file after adding the web security:
"webkit":{"webprefs":{"minimum_font_size":6, "web_security_enabled":false}}
You can check all settings applied from the calibration in the Manual Configuration section below (click the + sign to expand it).
Manual Configuration +
1. Click on Edge browser *Settings* button - the three dots located in the upper right corner of the browser
Settings -> Extensions.
2. Ensure that the
Progress Telerik Test Studio Extension is enabled.
1. Click on Edge browser *Settings* button - the three dots located in the upper right corner of the browser.
2. Use the plus (+) and minus (-) buttons next to
Zoom to set it to 100%.
1. Click on Edge browser *Settings* button - the three dots located in the upper right corner of the browser.
2. Select
Settings from the drop-down menu.
3. Locate the
Downloads section.
4. Enable
Ask where to save each file before downloading.
1. Click on Edge browser *Settings* button - the three dots located in the upper right corner of the browser.
2. Select
Settings from the drop-down menu.
3. Locate the
Site Permissions section.
4. Open the
Pop-ups and redirects section.
5. Disable the
Block option.
1. Click on Edge browser *Settings* button - the three dots located in the upper right corner of the browser.
2. Select
Settings from the drop-down menu.
3. Locate the
Site Permissions section.
4. Open the
JavaScript section.
5. Enable the
Allowed option.
1. Click on Edge browser *Settings* button - the three dots located in the upper right corner of the browser.
2. Select
Settings from the drop-down menu.
3. Locate the
Site Permissions section.
4. Open the
Cookies and site data section.
5. Enable the
Allow sites to save cookies option.
6. Disable the
Block third-party cookies option.
1. Click on Edge browser *Settings* button - the three dots located in the upper right corner of the browser.
2. Select
Settings from the drop-down menu.
3. Locate the
Site Permissions section.
4. Open the
Automatic downloads section.
5. Enable the
Ask when site tries to download multiple files option.
1. Click on Edge browser *Settings* button - the three dots located in the upper right corner of the browser.
2. Select
Extensions from the drop-down menu.
3. Locate the
Site Permissions section.
4. Enable the
Allow extensions from other stores option.
You can check all settings applied from the calibration in the Manual Configuration section below (click the + sign to expand it).
Manual Configuration +
1. Click on browser settings in the right upper corner and press on
Add-ons.

2. Ensure that the
Progress Test Studio Extension is enabled.
1. Click on browser settings.
2. Use the plus (+) and minus (-) buttons to set it to 100%.
1. Click on browser settings and press on
Options.

2. Click on the
Privacy and Security tab (on the left side) and scroll down to
Permissions section.
3. Uncheck the
Block pop-up windows checkbox.
1. Click on browser settings and press on
Options.
2. Scroll down to
Tabs section and check
Open new windows in a new tab instead.
1. Click on browser settings and press on
Options.
2. Scroll down to
Downloads section and check and select
Always ask you where to save files.
1. Click on browser settings and press on
Options.
2. Click on the
Privacy and Security.
3. Scroll down to
History section to set the option to
Remember history.
1. Click on browser settings and press on
Options.
2. Click on the
Privacy and Security.
3. Make sure the
Remember logins and passwords for websites option is disabled.
As of the 2012 R1 version released in April 2012, set the Connection Settings to Use system proxy settings.
1. Click on browser settings and press on
Options.
2. Click on the
General.
3. Scroll down to
Network Proxy section and press on
Settings... button.
4. In the
Connection Settings window select
Use system proxy settings.
There are three more settings to be modified in the configuration editor - type
about:config in the url bar and press Enter to access it. Double click the following settings to set these to
false:
- browser.sessionstore.resume_from_crash
- browser.tabs.warnOnClose
- browser.tabs.warnOnCloseOtherTabs
The following Add-ons are known to conflict with the Progress Test Studio Extension:
- AOL Messaging Toolbar
- FoxyProxyStandard