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How to Fix Viva Engage Conversations Web Part Errors in Firefox

Huda Qurayshi Sep 30, 2026 868 views

Question details

The Viva Engage Conversations web part fails to load on a SharePoint page when using the Mozilla Firefox browser.

Fixing Viva Engage Conversations Web Part Errors in Firefox

Product: Viva Engage / SharePoint
Device & OS: not provided
Scenario: A user attempts to view a SharePoint page containing embedded Viva Engage Conversations, but the module fails to display in Firefox.
Observed behavior: The web part either throws an error or fails to load entirely in Firefox, despite functioning correctly in other web browsers like Chrome or Edge.

Before you start

Verify that your Firefox browser is connected to the internet and temporarily disable Firefox's 'Enhanced Tracking Protection' (the shield icon in the URL bar), as strict privacy settings can sometimes block embedded Microsoft 365 elements.

Solution 1Recommended

Troubleshoot Firefox Browser Settings and Extensions

Resolve common browser-level conflicts by updating Firefox, clearing site data, and testing without extensions.

Embedded web parts often rely on cross-site cookies and specific scripts to authenticate and render correctly. Outdated browser versions, corrupted cache data, or aggressive privacy extensions can interfere with this process.

Update Firefox

Click the Firefox menu (three horizontal lines) in the top-right corner, select 'Help', and click 'About Firefox'. The browser will automatically check for and install any available updates.

Test in a Private Window

Press Ctrl+Shift+P (Windows) or Cmd+Shift+P (Mac) to open a new Private Window. Navigate to the SharePoint page and log in to see if the web part loads. If it works, the issue is likely related to cached data or an installed extension.

Clear Site Data

Go to Firefox Settings > Privacy & Security > Cookies and Site Data. Click 'Clear Data' and ensure 'Cookies and Site Data' and 'Cached Web Content' are selected, then clear them. Note that this will sign you out of most websites.

Disable Extensions

Navigate to the Firefox menu and select 'Add-ons and themes' (or press Ctrl+Shift+A). Temporarily toggle off all extensions, particularly ad-blockers and privacy trackers, then refresh the SharePoint page.

Troubleshoot Firefox Browser Settings and Extensions

Firefox Tracking Protection: Firefox's default Enhanced Tracking Protection may block elements required by Viva Engage. Clicking the shield icon next to the URL and toggling 'Enhanced Tracking Protection' off for the SharePoint site often resolves rendering issues.

Solution 2

Submit a Microsoft 365 Support Request

If browser troubleshooting does not resolve the error, the issue may involve tenant-level permissions or a service bug requiring administrative intervention.

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Frequently Asked Questions

Why does the Viva Engage web part work in Chrome but fail in Firefox?

Firefox implements stricter default privacy settings, such as Enhanced Tracking Protection, which can block third-party cookies or scripts that embedded Microsoft 365 web parts like Viva Engage need to authenticate and display correctly.

Will clearing my Firefox site data log me out of Microsoft 365?

Yes, clearing your cookies and site data removes active session tokens. You will need to sign back in to SharePoint and your Microsoft 365 account after performing this step.

Can a standard user submit a support ticket for this SharePoint error?

Generally, only users with administrative privileges can submit official support requests through the Microsoft 365 Admin Center. Standard users should contact their organization's internal IT helpdesk to report the issue.

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