How can I test my website on older Firefox versions?

Can anyone please tell me how can I test my website on older Firefox versions. I have the latest Firefox and I don’t want to uninstall it again everytime I test on some older version can anyone please tell me is there any workaround for the same.

There are many testing tools that allow you to test your website and web applications on different versions of Firefox browser. Some of them are:

  • LambdaTest
  • Browserling
  • Browsershots
  • Browserstack
  • CrossBrowserTesting