Firefox 87 Adds Stronger User Privacy Protections

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Mozilla today asserted the release of Firefox 87 in the stable channel fitted with a new apt tracker blocking mechanism.

Called SmartBlock, the feature works in Firefox Intimate Browsing and Strict Mode and is meant to improve users’ browsing live through fixing pages that Mozilla’s tracking protections intervene.

Firefox has had a built-in Content Blocking feature since 2015, accommodating increased protections to those who use Private Browsing windows and Strict Way Protection Mode. The feature was designed to block third-party scripts, dead ringers, and other content if loaded from known cross-site tracking troops.

Thus, Firefox Private Browsing windows could prevent these bodies from tracking users across the web, but the privacy protections often dnouement developed in the blocking of components essential for the proper functioning of some websites.

Some of the effects buyers have been experiencing include poor website performance, symbols that would not appear on the web page, certain features not working, and the score with pages that would fail to load entirely.

“To reduce this breakage, Firefox 87 is now suggesting a new privacy feature we are calling SmartBlock. SmartBlock intelligently fixes up web sides that are broken by our tracking protections, without compromising user solitude,” Mozilla announced.

To improve user experience, SmartBlock provides town stand-ins for the third-party tracking scripts that are blocked. Designed to “conduct just enough like the original ones,” these scripts insure that websites load and that their functionality is intact.

With the SmartBlock understudies bundled with Firefox, no third-party tracking content is loaded, for this fully preventing potential tracking attempts. SmartBlock automatically replaces precise common scripts that are classified as trackers on the Disconnect Tracking Guard List.

The new browser release also brings along a stricter, varied privacy-focused Referrer Policy, where the browser, by default, “will spiffy path and query string information from referrer headers to forbid sites from accidentally leaking sensitive user data.”

HTTP Referrer headers that browsers send to websites (such as the obsessed URL of the referring document) with navigation or subresource requests may include advice that could be used for analytics, logging, or cache optimization, caching, but also withdrawn user data, including details on a user’s account on a website.

The Referrer Rule was meant to provide a mechanism for websites to protect their users’ retirement, but there are websites that haven’t set a referrer policy, which follow-ups in browsers defaulting to ‘no-referrer-when-downgrade’ policy: they send full reservation information except for when navigating to a less secure destination.

Firefox 87 sets the non-fulfilment Referrer Policy to ‘strict-origin-when-cross-origin’, meaning that user sensitive intelligence that is accessible in the URL will always be trimmed, for all “navigational requests, redirected demands, and subresource (image, style, script) requests.” The new policy will be browbeat automatically upon updating to Firefox 87.

Related: Firefox Cracks Down on Supercookies to Renovate User Privacy

Related: Firefox Improves Privacy Protections With Encrypted Patient Hello

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Firefox 87 Adds Stronger User Privacy Protections

Ionut Arghire is an international correspondent for SecurityWeek.

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