Differences between supported browsers

This topic describes differences you might encounter in test results and in the test run when replaying on a browser different than the one on which you recorded the script.

Note: TruClient Browser has replaced use of the Firefox browser. Scripts that are configured to run with Firefox will automatically be run by TruClient Browser.

Feature support matrix by browser

The following table describes features that have limitations in one or more of the browsers.



Internet Explorer

TruClient Browser

Browser description

Chromium is an open-source Web browser project from which Google Chrome draws its source code.

Chromium is recommended for testing applications that run on the Chromium-based Microsoft Edge browser.

Chromium source code on Github

Browser developed for Microsoft Windows.

TruClient browser developed for Windows, based on Mozilla technology.

Browser version
  • Chromium 91 in TruClient 2021 R2

  • Chromium 88 in TruClient 2021 R1

  • Chromium 86 in TruClient 2021

  • Chromium 80 in TruClient 2020 SP2
  • Chromium 76 in TruClient 2020 and 2020 SP1

Internet Explorer 11

Equivalent to Firefox version:

  • 83 in TruClient 2021 R1

  • 77 in TruClient 2020 SP3

  • 71 in TruClient 2020 SP2
  • 65.0.3 in TruClient 2020 and 2020 SP1

  • 50.0 for TruClient - Native Mobile scripts

Modify browser preferences

(see Modify browser preferences)

SSL Connections

Report the number of open SSL connections.

Chromium does not expose the number of open SSL connections.

TruClient Browser does not expose the number of open SSL connections.

Responsive design based application

(see Applications with responsive design)

Record snapshots

Snapshots generated during the recording of a script.

Modem speed emulation

Web components support

Record and replay actions in pages with web components.

File download support

Wait for a file download

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Features supported on all browsers

The following features are supported on all browsers:

  • TruClient Coded, which enables converting TruClient actions to code. For details, see Convert TruClient actions and functions to code.

  • Network Virtualization reports integration, which provides information about how your application performs over various networks. See NV Insights Report.

  • Network Virtualization emulation integration, which enables configuring a WAN profile on the group in the Controller.

  • Diagnostics integration, which enables server side diagnostics for J2EE and .Net applications.

  • Automatically or manually attaching the client certificate to the script folder when recording a script.

  • IP spoofing, which enables mimicking multiple IP addresses from the same load generator.

  • Verifying the content of a PDF document during script execution.

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See also: