Webflow Form Integrations with Mailchimp
In the era of automation, connections are essential
Automatically sending data to a list, such as adding event subscribers to a Mailchimp list is imperative to the success of your event.
Webflow easily integrates with Mailchimp. I know because I recently used Webflow for an event landing page. It appears there is an issue with Mailchimp and Firefox. Regardless whether the form is built in Webflow or not, it looks like all Mailchimp's forms require method="post".
Taken from, https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Privacy/Tracking_Protection:
When tracking protection is enabled, Firefox will block content from sites in the list. Sites that track users are most commonly third-party advertising and analytics sites.
This method should work because you'd end up changing the form back to method="get" rather than "post" which won't trigger the tracking protection feature in FF.
Firefox issue with Mailchimp forms
Not all browsers are alike
When tracking protection is enabled, Firefox will block content from sites in the list, including Mailchimp. The rationale is that sites that track users are most commonly third-party advertising and analytics sites.
After researching for some solutions and workarounds, it doesn't look like Mailchimp offers any specific instructions on how to work around this error. It would be nice if Mailchimp support would do more to help get around the tracking protection. All I could find was a suggestion that the potential event attendee use a different browser or enable Mailchimp, something most people don't want to do. And the event host wasn't happy with that solution.
Need apps that work together?
Integrate your Webflow Form with Zapier
Integrations are easier with Zapier
Alternatively, you can use Zapier if you'd like. You can integrate your Webflow form with Zapier and from there set up a trigger to send the user info to Mailchimp — here's a list of our Zaps: https://zapier.com/zapbook/webflow/