Hello @calvinus,
Thank you for reaching out,
I’ve checked your website and our demos on the Firefox browser and didn’t see any issues on my end. Could you please share a short video of the issue you’ve encountered?
Note 1: If you have any browser extensions please disable them.
Note 2: If you have any cache plugin or server cache(CDN / Browser Cache and Cookies and …), you need to clear its cache contents or disable them to see your changes. Also, remember to click on the regenerate all assets file and data in Elementor > Tools(if you have Elementor).
If your issue persists, please perform a basic troubleshooting checkup method and make sure the issue is related to our theme or plugin(s). To do this, deactivate all other plugins, then activate them one by one and check for this issue. Continue doing this until you find out what product is causing a conflict with our product. Then provide the details on how can we replicate your steps to arrive at the issue on a fresh WordPress installation.
I hope it helps.
Best Regards