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Featured Articles

Website will not allow Firefox to display the page if another site has embedded it

Website will not allow Firefox to display the page if another site has embedded it

This page explains the error: "Website will not allow Firefox to display the page if another site has embedded it"

Make Firefox the default browser on Android

Make Firefox the default browser on Android

This article explains how to set Firefox as your default browser on your Android device.

Sync Firefox data

Sync Firefox data

Learn what Sync is, how it works, what it lets you do and how to avoid data loss with Sync, Firefox and your Mozilla account.

Update Firefox to prevent add-ons issues from root certificate expiration

Update Firefox to prevent add-ons issues from root certificate expiration

Update to Firefox 128+ by March 14, 2025, to avoid issues with add-ons, DRM media and essential features due to an expiring root certificate.