Popup Off Center In Firefox, Fine On Safari & Chrome
Gary Piland
Joomla 5.4, SPPB v6.1.2
Here is the link:
https://tswdev.umbrellahostnet2.net/free-workshop
On Firefox the popup is off center, in Safari & Chrome it is centered.
NOTE: Going to link on Firefox the popup appears off center. If you Shift-Command-R it is centered on Firefox, but going to the link again or doing a Command-R it's off center again.
Only happens on Firefox.
From Perplexity AI:
The centering and overlay behavior is controlled by SP Pagebuilder’s JS (their wrapper around Magnific Popup), which is what is misbehaving.
JoomShaper already tracks similar redirect/positioning issues for their form/popup add‑ons, so opening a ticket with your screenshots and “works in Chrome/Safari, off‑center in Firefox” is appropriate and gives them a reproducible case to patch.
Ziaul Kabir
Accepted AnswerHello,
Thanks for reaching out to us.
You have set a incorrect height in your popup, which is cause this issues.
Could you please share temporary administrator access to your Joomla backend? You can provide the credentials securely in the hidden content section. Also, please take a full backup of your site before we make any changes.
Once I have access, I’ll investigate further and see what’s causing the issue. Let me know once you’ve shared the details!
Best regards,
