Why is Firefox no longer supported?

Specifications

Starting July 15, 2020, Cirrus Insight for Gmail* will no longer support the Firefox browser.

Since we've learned that the vast majority of our Gmail-based users use Chrome rather than Firefox, we're re-focusing our efforts so we can create and support the best possible experience for our users in Chrome.

In order to continue using Cirrus Insight, we encourage current Firefox users to learn about and install Chrome.

Afterwards, install Cirrus Insight for Chrome and you’ll be ready to enjoy the benefits of our re-focused efforts.

*Cirrus Insight for Office 365 will still be accessible in any browser, including Firefox.

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Google's Rapid Release track can introduce changes to Gmail early/unexpectedly— creating issues with Cirrus Insight— so we recommend selecting Google's Scheduled Release track for increased stability.
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If a user's Email Template formatting options are missing, grant the "Edit HTML Templates" and "Manage Public Classic Email Templates" permissions in Salesforce.
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Why is Firefox no longer supported?

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