Selenium scripts can run tests only against Firefox as the tool IDE itself is a plugin of Firefox. Tests developed using Selenium IDE can be executed against other browsers by saving it as Selenium WebDriver or Selenium Remote Control Script.
Step 1 − Open any saved Test in Selenium IDE.
Step 2 − Navigate to "File" menu and select "Export Test Suite As" and the options would be listed.
Step 3 − Now let us export the script to "WebDriver" and save it with a name.
Step 4 − The saved WebDriver file is displayed as shown below.