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Dedicated profiles per Firefox installation
Different Firefox installations now use a separate profile to store your bookmarks, passwords and other settings. Learn more.
Disable Firefox Sync on a lost phone or tablet
This article describes what you should do to prevent someone from accessing your passwords on a lost device with Firefox Sync.
Task Manager - see whether tabs or extensions are slowing down Firefox
Firefox has a feature that lets you see how much memory and CPU resources are being used by tabs, extensions and other processes. Learn more.
Firefox release notes - What's new and known issues
Links to Firefox release notes for Desktop, Android and iOS.
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