Make sure that “Auto Configuration” option in Replace Tools tab is enabled/checked. If still the issue then can you please let us know where exactly is the version being captured by mozilla? (screenshot will be helpful). Thanks!
Hi, I have added replacement in ‘replace in HTML’ section (https://www.screencast.com/t/lrwbIXaXf). Can you please check now? Also, you’ll need to check the site in logged out state.
The version name is replaced now, and WPB is removed too. If you want to rename these to something else then you can do it in “replace in html” section under Replace Tools tab.