I have a Selenium project which is working on a recent version of Firefox. Now I need to make it work on Firefox 47. What would be the best way to do that? Will it work if I use an older version of geckodriver?
It depends mostly on geckodriver version. So, if you can get geckodriver version compatible to the old Firefox version you want to use - this should work.
How can I use Selenium 4.7.2 (Python) on an old Firefox version (Firefox 47)?