From The Verge: Firefox 90 introduces the next version of SmartBlock, the browser’s tracker blocking mechanism built into its private browsing and strict modes, which now has improvements designed to prevent buttons that let you log into websites using your Facebook account from breaking, Mozilla announced on Tuesday.
SmartBlock was first introduced with Firefox 87 in March, and if you aren’t familiar, here’s Mozilla’s description of how it works, from the company’s blog:
"SmartBlock intelligently fixes up web pages that are broken by our tracking protections, without compromising user privacy.
SmartBlock does this by providing local stand-ins for blocked third-party tracking scripts. These stand-in scripts behave just enough like the original ones to make sure that the website works properly. They allow broken sites relying on the original scripts to load with their functionality intact."
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