Device Screen Tester

Experience website designs on different mobile screens by emulating various devices, providing valuable insights into mobile compatibility and aesthetics.

Device Screen Tester is available to install from Firefox Browser Add-ons and for download from this page. It has 2 active users The latest version is 1.0, and it was published a year ago.

Install from Firefox Browser Add-ons
View source code
Total download count: 0 (Only count downloads from Firefox-Stats)

All available versions

You can find the current and older versions of Device Screen Tester here. You can download the archived versions or inspect their source codes.

As a free user, you can only download the latest version.

Upgrade to download older versions
 1 version available for download.

Install XPI file

  1. Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

  2. In Firefox browser, go to about:addons to open Add-ons Manager
  3. Click on , then select Install Add-on From File
  4. Select the Device Screen Tester ZIP file from step 1. Device Screen Tester is now installed on your browser.