How to Fix Mobile Menu Not Opening in Squarespace

Yes, you can fix the mobile menu not opening in Squarespace with a few quick checks (and a little CSS magic if needed).

Let’s be honest. When your site’s mobile menu doesn’t open, it’s more than a glitch, it’s a dealbreaker. Over 70% of web traffic happens on mobile. If your visitors can’t navigate your site, they bounce. Fast. That means fewer clicks, fewer sales, and a big hit to your brand’s credibility.

So, if your hamburger icon is frozen or unresponsive, don’t panic.

You’re not the only one and no, you don’t need to hire a developer. You just need to pinpoint the issue and apply a clean fix.

Here's How to Fix the Broken Menu:

1. Check for Conflicting Code

Go to Design → Custom CSS. Remove (or temporarily comment out) any third-party code or plugins recently added. They often break the menu script.

2. Switch to Safe Mode

Go to Design → Site Styles and try resetting navigation settings to default. See if the issue persists in a fresh configuration.

3. Clear Browser Cache & Test on Mobile

Sometimes it’s a browser issue, not Squarespace. Test in incognito mode and on an actual device.

4. Add Repair CSS (If Needed)

Paste this into Custom CSS:
.mobile-nav-toggle { z-index: 9999; position: relative; }

5. Save and Re-Test

Click Save, refresh on mobile, and verify that your hamburger menu is now working.

Conclusion: When your mobile menu doesn’t open, your site hits a wall.

But now you’ve pushed through it-with clarity, confidence, and code-free savvy. This kind of problem-solving not only saves time and money-it protects your user experience and keeps your brand polished across every device.

So breathe easy, mobile warrior. You didn’t just fix a menu-you kept the whole experience flowing for your audience.